Stm32 pcb eagle board jobs
I need an experienced PCB designer who can design a PCB primarily for power management. The PCB will be used in a radio type application and will include an opamp as its key component. Key Requirements: - Extensive experience in PCB design - Proficient in DipTrace software - Knowledge of power management systems - Familiarity with radio type applications - Understanding of including opamps in PCB designs Please, only bid if you have a proven track record in these areas.
I need my babies photoshopped into a background. I have my own background that I did supply. I have 1-3 photos of my babies that need to be photoshopped. I need my babies “cut” out of 2 separate photos and put into 1. One baby on each side of the sign board
Hello! I am looking for a PCB Designer who can design a PCB board for me. The design must be production ready. Please also recommend a manufacturer. The board is not for resale, only one unit for me should be produced. The total size of the board should be max. DIN A3 size. Description: I want to create a live map on a PCB of the Seoul Metro system. The overall design should look like the attached map. There are 768 Stations so about 800 small LEDs are needed. With the respective drivers. And a few status LEDs It should run on a suitable ESP32 or Raspberry Pi Zero/Compute Module with WIFI. I will create the software by my own, but it should come with a lamp test software. The overall design should like this: LEDs in colors according to a...
I have a 3D model of a PCB that needs to be designed to hold a ring of eight x Vishay TSSP58P38 IR Detector Modules evenly spaces facing away from the center. The circuit should connect all sensors to common + and - header pins andd heaader pins for each sensor. total of 10 headders. Key Components: - The circuit should include the IR sensors and the PCB. - Ability to design with consideration for potential inclusion of other components like resistors, capacitors, or microcontrollers in future. Size Requirements: - I have already designed the 3D file for the PCB shape, so there are no specific size requirements to adhere to. Ideal Skills and Experience: - Proficiency in PCB design and circuit layout. - Previous experience with designing PCBs for IR sensor app...
I am looking for an experienced freelancer to design a power window controller using an Arduino Uno for 4 windows. The controller should have the fo...be customizable and flexible, with easy-to-modify source code. - Design Files: Please provide Gerber files for the project. We will discuss the design of the board further once I accept your proposal. The primary goal of this project is to facilitate ease of control via UART. The preferred connectors for the UART interface are header pins. Ideal candidates for this project should have: - Extensive experience with Arduino programming and hardware. - Previous projects where they have designed and implemented a power window controller. - Ability to provide high-quality Gerber files. - Strong communication skills for discussing the ...
I'm seeking a talented illustrator to bring my 14-page board book to life. The book will target preschool children, so a cartoonish style is essential. The illustrations will primarily focus on the characters on each page, with smaller illustrations on other elements. The book will initially be printed as a paperback. Ideal Skills and Experience: - Cartoonish illustration style - Experience with children's book illustrations - Ability to create engaging characters for preschool aged children - Knowledge of layout for print Please provide a portfolio demonstrating your relevant experience.
I need assistance with my circuit board, specifically with component recommendations and adjusting resistors to lower power consumption. Key Responsibilities: - Recommend and source suitable components for the circuit board. - Modify existing resistors to reduce power usage. Ideal Candidate: - Proficient in electronics and circuit design. - Previous experience with component optimization. - Able to provide innovative solutions for power reduction.
...with the Healing They Deserve", along with some key details: - All services are free for employees - Our blind billing system ensures privacy and confidentiality - Inclusion of our logo and contact information - Mention the credentials and qualifications of the therapists. All therapists are licensed and culturally competent with many years of experience. We have more Police and Public asfety board certified psychologists than any psychological company in California. - Highlight the accessibility options. Our clinicians are available 24/7. - Mention the physical locations where services are offered. Offices in Los Angeles, Orange County, San Diego, Rancho Cucamonga, Riverside, and Ventura County. Color-wise, we're looking for a design that uses calm and soothing colo...
From 1-Nov-2024 to 10-Nov-2024 Database, Aggregators, Clonning and republishing
I'm in need of a Trello specialist to help me set up 1-3 boards focused on project management and team collaboration. Key Responsibilities: - Organize and structure the boards for optimal team engagement and project tracking - Set up appropriate team collaboration permissions - Create reusable task templates for recurring projects - Configure Trello automations to streamline workflows - Integrate Trello with other project management and communication tools - Set up reporting dashboards for tracking progress and metrics Ideal Skills: - Extensive experience with Trello - Strong understanding of project management methodologies - Excellent team collaboration facilitation skills
I'm looking for a WordPress expert to help me fix and upgrade my website. Specific areas needing attention have not been determined, but I am keen on improvements across the board.
I'm in need of a Trello specialist to help me set up 1-3 boards focused on project management and team collaboration. Key Responsibilities: - Organize and structure the boards for optimal team engagement and project tracking - Set up appropriate team collaboration permissions - Create reusable task templates for recurring projects - Configure Trello automations to streamline workflows - Integrate Trello with other project management and communication tools - Set up reporting dashboards for tracking progress and metrics Ideal Skills: - Extensive experience with Trello - Strong understanding of project management methodologies - Excellent team collaboration facilitation skills
As the owner of a fast-growing digital agency, I'm looking to collaborate with a skilled lead generation specialist to help us expand our client base. We need a freelancer with a strong track record in prospecting, outreach, and building reliable lead lists that drive results. What You'll Do: *Conduct targeted ...generation, including research and outreach. *Proficient in CRM and lead-generation tools (e.g., LinkedIn Sales Navigator, Apollo, Hunter). *Excellent attention to detail and organizational skills. *Self-motivated with the ability to meet deadlines consistently. If you're a detail-oriented professional passionate about helping businesses grow by building robust lead pipelines, we’d love to bring you on board! This role offers long-term potential for ...
I'm in need of a seasoned engineer with expertise in GNSS modules, STM32, and various electronic components. The project entails designing, developing, programming, and deploying a system capable of achieving bidirectional data communication with a server via cellular. Key Responsibilities: - Design and implement a system using GNSS, STM32, and other electronic modules. - Program the system for effective communication. - Oversee the deployment of the system. Ideal Skills: - Proficient in working with GNSS and STM32 modules. - Strong programming skills. - Prior experience in deploying similar systems. - Knowledge of cellular communication systems.
I'm seeking ...seeking a freelancer to conduct an online search for the annual reports of 150 tourism boards. The reports should be compiled into an Excel spreadsheet. Specific requirements: - The reports should be in an Excel spreadsheet. - From each annual report, I need a link to the latest tourism strategy available online and an image of the report. - The reports should be sourced from official tourism board websites and government websites. - Specify the date range of the annual reports (e.g., the past 3 years). Ideal skills and experience for the job include: - Proficiency in Excel - Strong internet research skills - Familiarity with tourism industry data - Ability to follow instructions carefully and accurately. Please provide your bid and previous relevant experie...
We are looking for an experienced Wix developer to help optimize the scalability of an element on our Wix Studio website. Currently, our "Job Board" page, is not scaling beyond the standard 1920x1080 resolution, causing display issues on higher resolution screens (e.g., 4K). Specifically, the "Job Board" is built using Wix Blogs, but we need it to scale seamlessly across a wider range of screen sizes, including 4K. We are seeking someone who can either: 1) Resolve the scaling issues on the existing blog-based job board, ensuring it displays properly across all resolutions (especially 4K), or Rebuild the job board from scratch with a custom solution that automatically scales across multiple screen sizes, ensuring the layout and content ar...
I need to develop an Android app that connects to an ESP32 board via Wi-Fi, with the ESP32 acting as a hotspot. The ESP32 is connected to several sensors and components, including: 1. ESP32 CAM for live video streaming 2. TDS (Total Dissolved Solids) sensor 3. Dissolved oxygen sensor 4. pH sensor 5. Temperature sensor 6. GPS sensor 7. 2 motors (for controlling a boat) 8. A pump (with on/off switch) The app should have three main pages: **Page 1: Live Video and Boat Control** * Display live video feed from the ESP32 CAM * Include buttons to control the boat's movement: + Forward: both motors work in the same direction + Backward: both motors rotate in opposite directions + Left and Right: different motors work * Add a switch to turn the pump on and off...
I am seeking a skilled developer or team to design and build an RS232 multiplexer board capable of connecting 2-4 devices to a single RS232 port. This board will be used to interface with peripheral accessories, including: - A QR code scanner - An RFID scanner - A ticket printer Key Functional Requirements: Two-Way Communication: __________________________ Data sent to the board will include an address to direct it to the appropriate port. Example: "." is routed to Port 1, "." to Port 2, and so on. Data received from the devices will include an address indicating its source. Example: "." is recognized as originating from Port 1. Protocol Addressing: _____________________ An addressing system (e.g., .00., .01., .02.) will precede all...
...supports community interaction, amenities booking, and important society updates. ● Society Forum o Description: Community board for discussions, questions, and updates. o Key Elements: Categories, comments, and sharing options. ● Society Groups o Description: Interest-based resident groups for shared activities or discussions. o Key Elements: Group creation, chat, and bulletin options. ● Polls o Description: A polling tool for society admin to collect resident opinions. o Key Elements: Customizable polls, results display. ● Amenities o Description: Booking portal for society amenities like gym or pool. o Key Elements: Booking system, amenity rules, and details. ● Notice Board o Description: Updates on society notices such as maintenance schedules. o Key Elements: Categori...
I need a custom side board designed and built. The specifications are as follows: - Dimensions: 10 feet in height and 2.5 feet in width - Design: The board should mimic a mobile frame with all elements incorporated within it. - Text: 1. The Twins logo at the top 2. The phrase "Buy Sell Repair" prominently displayed - Logos: Various mobile repair logos (Apple, Samsung, Huawei, Sony, Nokia, HTC, Vivo, Gaming, Vapes) and a key cutting logo with the text "Key Cutting" inside the key. My brand logo is yellow, hence the border of the mobile frame should also be in yellow. The text should be in a bold and modern style, and the board will be made of metal. The final touch should be a glossy finish on the logos and text. Ideal sk...
I have 2 logos made into 3d models, one basic logo and one logo with an eagle on the top holding the logo in it's claws. Both need to be made into 3d printable files to make awards.
Hi there. I have got a simple inverter online. Would want to get single side PCB Layout on PDF page. on I can itch myself. Please review the circuit I am sharing.
I'm in need of a highly skilled PCB designer who can create a circuit board for a miniature surface mount 3D Hall Effect sensor - SENM3DX. The primary function of this circuit board is to monitor magnetic fields, and it must be compact enough to fit within a specially designed transformer core that is larger than 2 cm³. Key Requirements: - Design and create a PCB that accommodates the SENM3DX sensor and signal conditioning components. - The board must be very small and fit inside of a specially designed transformer core. - Incorporate signal conditioning components onto the PCB. Ideal Skills and Experience: - Previous experience in PCB design, particularly with surface mount chips. - Familiarity with 3D Hall Effect sensors and th...
I need an expert who can resolve an issue with my e-commerce website built on custom HTML/CSS using the Vue.js framework. - Problem: My Google Ads tracking is not functioning correctly. When I click on my products in the Google search board, the URLs do not contain the necessary gclid query for tracking advertising conversions, despite auto-tagging being enabled in the settings. - Goal: To ensure all product URLs clicked through Google Search include the gclid query. Please, no bulk responses. Only experts with relevant experience will be considered. You have to guide me in call.
I'm seeking assistance to produce 10,000 five-second professional videos by the end of December. Video Details: - Setup: Using approved Videographer Cameras (e.g. Sony FX3, Canon EOS R5, Blackmagic PYXIS 6K) in a controlled mixed lighting environment with natural light and reflectors. - Participants: Two individuals in each frame holding a color board for the first two seconds. - Action: After two seconds, the participants drop the color board and remain still for three additional seconds. - Requirements: Ensure proper focus, lighting, and a variety of visible backgrounds. In your proposal, please include: - The number of videos you can confidently deliver within this timeframe. - Your rates. - Any questions or additional requirements you might have.
I'm in need of an electrical engineer who can design a compact, efficient voice changer board with minimal delay, suitable for commercial applications. The design should ideally be Arduino-compatible, though not strictly necessary. Key Requirements: - Design a voice changer board that is same size or smaller than existing models, yet maintains the same level of performance with hardly any delay. - Ease of programming is crucial. The board should be straightforward to program, ideally using a smaller Arduino. - The project is intended for commercial products. Therefore, the design should be cost-effective for mass production without compromising on quality. - Implement advanced noise reduction techniques to ensure high-quality audio output. - Optimize power cons...
...Details: - The task is to design an image using AI of an engineer in his late thirties, standing in a modern kitchen showroom. - The engineer should have distinctive Arab features. - The engineer should be dressed in specific attire: a white shirt with the store's name on the collar (the logo will be provided to the winner), dark pants, and a pencil behind his ear. - The engineer is holding a drawing board or architectural plan, slightly leaning over a worktable where he is sketching a kitchen design. - The background should feature a contemporary kitchen showroom with white and wooden tones, natural lighting, and large windows. The worktable should have drafting tools like a ruler and markers. - We aim to create a creative atmosphere that conveys precise planning and atte...
1- Task is to visit University of West Indies physically and take 6-7 geotagged photos of the name board of the institutes captured from outside the building and preferably inside too. Download app for geotagged pics from the link: If you can't get the app, just note down the latitudes and longitudes of the location when you're there and get simple pictures. 2- Get the verification forms filled, signed and stamped by the HR or relevant authority of these locations. 3- Get the details of verifier that is their name, designation, Department and Contact. 4- In case of refusal to fill form, take the written refusal statement with stamp or sign as a proof. If they don't give written, ask them that you want to record them saying their reason and take their details like ...
...FAST with AI dev tools and can bring technical expertise in React and Postgres to a milestone-based project. Pricing reflects devs who can code with Cursor and other AI tools. This role involves close work with a VERY experienced Product Manager, where you’ll spend up to three hours a day initially, co-creating through live screen-sharing and building together. We will use Jira, a kanban board and user stories to progress. DOD will include extensive UAT and all tests passing, moved from Dev to Staging to Prod as Done. You Must have deep experience of AI dev tools like cursor. The timeline reflects this NOT traditional development. Cursor IDE, and/or ( Pythagora , v0, lovable). If you have experiences with Turd - explain how much time spent in Turd, flies and dung. ...
...Thankbox (). This site allows users to select from various eCard samples or upload their own images, or even generate an image using AI based on the message content. Key Features: 1. eCard selection, image upload, or AI generation 2. Various payment options (Credit/Debit cards, PayPal) 3. Personal message addition 4. Shared link for collaborative card creation 5. Flipbook or board view for message adding 6. Timed email delivery or immediate sending to the recipient 7. Download option as a PDF Message Customization: The site should allow users to include images or GIFs in their messages. Ideal Skills: - Proficient in web development - Experience with eCommerce sites - Familiarity with AI integration - Knowledge of secure payment gateway implementation - Understanding of
...(each program stores mode, voltage/current value, timer). Keep saving the timer value when a program is running. Restart from power off: When system is switched on, was a program running previously before mains supply voltage was shut, mid-timer? If yes, continue from the same timer value. Deliverables are: 1. Schematic design 2. PCB design (preferably within 150x150 or 200x100mm size, we can discuss) 3. Text document (with comments/explanation) 4. CAD in Eagle, Kicad or Altium (with required libraries)...
I'm in need of a PCB design for a pair of AI glasses primarily focused on audio features. This project involves integrating specific components and systems to facilitate voice commands and audio feedback. The glasses will be controlled via touch controls so the PCB needs to accommodate this interface as well. Ideal skills for this project include: - Experience in PCB design and development - Understanding of audio integration in electronic devices - Knowledge of touch control systems Please note, the primary function of these AI glasses is not vision enhancement or health monitoring, but rather delivering an immersive audio experience. Therefore, a PCB design that can support high-quality audio output is crucial.
...transformation. It starts adjusting at a cellular level, creating new routines and preparing for your new, healthier lifestyle. But this transformation can feel like a struggle. Most people lose motivation, feeling like the journey is too tough." [Cut to scene of a person looking motivated and ready to go] Narrator: "So, what’s the key to lasting change? It’s about getting your unconscious mind on board with your conscious goals. When your conscious and unconscious minds are aligned, making healthier choices becomes second nature. No more fighting yourself to get out of bed or resist junk food—your new lifestyle flows effortlessly." [Scenes of someone confidently working out, making healthy choices, smiling] Narrator: "The secret to fast,...
...seating capacity and creates a cozy atmosphere. - Ensure the plan meets the requirements for obtaining a full alcohol liquor license. - Consider staff workflow efficiency in the design. Ideal Skills: - Commercial design experience. - Understanding of liquor license requirements. - Ability to create engaging and cozy seating arrangements. These are the specific requisites from Liquor and gaming board: Plan of Premises: The plan you provided is missing some required details. I have attached a factsheet of how to prepare a floor plan to this email. Provide a new premises plan which includes all the following details: o Indicate any and all streets on which the proposed licensed premises are located on each page. o Indicate the address of the proposed licensed ...
...game developer to create a simple, engaging checkers-like game app based on the Hawaiian game, Kōnane. The game should be designed for both iOS and Android platforms. Key Project Specifications: - Platform: The game must be compatible with both iOS and Android devices. - Graphics: I want the game to feature 2D graphics. - The game must support a live 2-player competition mode with variable game board sizes. - Players must be able to play a specific person or a random person. - Include an interactive tutorial mode to teach new players the rules and strategies of Kōnane. - Implement a leaderboard system to display top scores that resets every month. - Support free-play and in-app purchases to pay-in for competitions and a pay-out system for winners, reserving a percentage for th...
I'm seeking assistance with my existing PCB design in Altium. The project involves very few modifications to accommodate the new power management components, ensuring and improving the overall thermal performance of the board. This is a very quick task. Key tasks include: - Adding new power management components to the existing design. - Making routing adjustments as required. - Implementing heat sinking methods for thermal performance improvement. I'm looking for someone with a strong background in PCB design, particularly with Altium and ESP32, who can help optimize my design in a quick 1-2 hour session. Experience with implementing ground fills, hash patterns, and ground traces for noise/ESD protection and crosstalk minimization would be highly benefic...
...record of chatbot development - Excellent understanding of customer service needs in e-commerce - Skills in web marketing to promote our products and create new audiences. If you have other software skills, please let us know.. particularily in UX design like Figma and Node Red etc. We are developing some new equipment that needs a nice design ro communicate with the firmware so experience on a PCB project would also be useful. . Please provide examples of your previous work with OpenCart / web marketing etc. The first mini project is just to get to know each other. To remove some simple bugs- like PHP due to hosting version changes.. We use Godaddy right now. Possibly we will update the Opencart version also. After that, we can agree target based budgets. !!!!! Please ...
I'm seeking a marketing professional to help promote my Udemy course. Given that I for now only have a 100 USD budget for promotion, you have to be really creative. If you do really well I will increase spend for marketing and your salary. Key Responsibilities: - Content Marketing: Crafting engaging posts for forums and job boards to generate awareness and interest in the course. ...to the person that use the skills best. We will post jobs (lead ads) on job boards to see who can get us the most leads to our finance business. Ideal Skills: - Proven experience in social media marketing, specifically on LinkedIn. - Excellent content creation skills with the ability to produce compelling posts for various forums. - Knowledge of Udemy and its audience would be a plus. - Job bo...
...updates, task assignment and tracking, as well as team collaboration and communication. Key Features: - Initiation: Upload documents, Excel spreadsheets for budget and BOQ - Planning: Various Excel spreadsheets for risk assessment, work breakdown structure, critical path, and procurement management, along with a MS project document and an upload folder for relevant documents - Execution: A Kanban board, Excel QA sheets - Monitoring and Controlling: Excel spreadsheets for cost and procurement control, reusing the Kanban and QA sheets from Execution, and an upload documents folder - Closing: Excel spreadsheet for budget and costs, signoff sheets, and an upload documents folder Access Control: The software should support three levels of access - Administrator, Editor, and Viewer....
I'm seeking an expert in PCB design to create a custom board for a TFT display interfaced with an ESP32-S3. The primary purpose of this display is to serve as a user interface for controls. Therefore, the design should facilitate touchscreen inputs and cater for robust, responsive control. Key components of the project include: - Designing for wireless charging, specifically adhering to the Qi standard. - Incorporating LoRa for long-range communication. - Ensuring the PCB is compatible with a TFT display. Ideal candidates would have: - Extensive experience in PCB design. - Prior work with ESP32-S3 and TFT displays. - Knowledge of touchscreen integration. - Expertise in wireless charging standards, particularly Qi. - Proficiency in designing for LoRa compa...
...comprehensive financial workflow board primarily for budget planning. Key Requirements: - Development of a budget planning board on - Creation of an expense tracking workflow incorporating: - Automated data entry - Real-time reporting - Expense categorization - Utilizing an existing Google Sheets template for reference - Integration of the board with Google Sheets Ideal Skills and Experience: - Proficient in with prior experience in financial workflow development - Experience developing boards and workflows - Capable of using and adapting Google Sheets templates - Understanding of budget planning and expense tracking principles. - Ability to implement automated data entry and real-time reporting features The workflow board should includ...
...Photon’s PUN2 and Realtime networking capabilities. Experience in developing reconnect and rejoin features in multiplayer games. Familiarity with turn-based game synchronization and maintaining data consistency across players. Ability to troubleshoot and resolve network-related issues efficiently. Excellent problem-solving skills and attention to detail. Preferred Skills: Experience in card or board games development, ideally rummy or similar multiplayer games. Knowledge of backend/server-side development to support multiplayer gaming infrastructure. Strong communication skills and ability to work collaboratively in a team. Why Join Us? Join Kingstrophy’s development team and contribute to building a seamless multiplayer experience for our growing rummy gam...
...MYP. 3. MYP Section (Middle Years Programme) Main Visual Element: Use a bridge or pathway leading from PYP to DP, with milestones along the way to represent the learner's journey and innovations. Key Innovations: Interdisciplinary Projects: Depict overlapping gears or Venn diagrams symbolizing integrated disciplines. Personal Project: Highlight this with an icon of a lightbulb or a presentation board, showing personalized exploration. Holistic Development: Include icons for service learning, leadership opportunities, and digital tools for personalized learning. Transition to DP: Use an archway or portal that symbolizes readiness, supported by skills-based programs and mentoring. 4. DP Section (Diploma Programme) Main Visual Element: A tree with deep roots and flourishing b...
Following are the requirements of task to be fulfilled. 1- Task is to visit the University Of Economics Varna physically and Take 7 to 8 geotagged photos of with name board captured and from outside the building. 2- Get the verification form filled, signed and stamped by the HR of University Of Economics Varna, and also stamp the certificate. 3- Get the details of verifier, Name, Designation, Department and Official Contact. 4- In case of refusal to fill form, take the written refusal with stamp or sign as a proof. 5- If University Of Economics Varna, does not found on given address than take the 7 to 8 geotagged photos of exact address with right left name boards photos and make a small few seconds video of address . Also get the details of any nearby business ( Name of person, Bu...
I'm looking for a professional with strong design skills to improve the layout and design of my Google Slides presentation. The main task will be resizing text boxes and images to ensure they fit within the frame on multiple slides. Change all text size to 72 point, resize the text box to fit within the white board background frame, and resize images so that they look nice under the text. This is for a kindergarten class so I will be using this to teach kids. There are 424 slides. I have attached a picture of what the original slides look like, and what they should look like after you edit them. I will send a google slides link where you can edit.
I'm looking for a professional with strong design skills to improve the layout and design of my Google Slides presentation. The main task will be resizing text boxes and images to ensure they fit within the frame on multiple slides. Change all text size to 72 point, resize the text box to fit within the white board background frame, and resize images so that they look nice under the text. This is for a kindergarten class so I will be using this to teach kids. There are 424 slides. I have attached a picture of what the original slides look like, and what they should look like after you edit them. I will send a google slides link where you can edit.
I am in need of an experienced PCB designer who can create a full-size (104 keys) membrane keyboard PCB. The keyboard should support backlighting, have programmable keys, and include media control keys. A trackball connection should also be incorporated into the design. Ideal Skills: - PCB design - Keyboard engineering - Experience with membrane technology - Understanding of backlighting systems - Understanding of EMI/EMC considerations to ensure compatibility. - Experience in circuit design and layout for advanced electronics. Please provide examples of similar projects you have completed. Your ability to deliver a high-quality, functional design will be key to this project. The keyboard should include a USB connection for interfacing with the computer.
I'm looking for a professional who can help with HTML/CSS...involve: - HTML/CSS Development: You will need to apply your advanced HTML/CSS skills to implement the redesigns and ensure the site is fully functional and responsive. - UI/UX Redesign: Using the provided examples, you will help to redesign existing UI/UX elements to improve the overall look and feel of the site. - Collaboration: You should be open to working closely with me, taking my feedback on board and making adjustments as necessary. Ideal candidates for this project should have: - Proven experience with Webflow - Strong HTML/CSS development skills - A good understanding of UI/UX design principles - Excellent communication skills for effective collaboration. Please provide examples of your previous work on si...
