Arm9 pcb Jobs
Hi PCB Must Innovations, ich habe Ihr Profil gesehen und würde Ihnen gerne mein Projekt anbieten. Wir können alle Details über den Chat besprechen.
Ich suche einen PCB Designer, der für mich einen USB-C 3.2 Gen2 HUB designt, an dem man eine Nvme PCIE Gen4 m.2 2230 SSD, ein Ladegerät mit 30 Watt und ein USB-C Mikrofon wie das Rode VideoMic Me-C anschließen kann. Das Bild im Anhang zeigt, wie ich mir den groben Aufbau vorstelle.
Hallo Metin A., mir ist Ihr Profil aufgefallen und ich möchte Ihnen mein Projekt anbieten. Wir können alle Einzelheiten im Chat besprechen.
PCB um 2x 7 SATA Laufwerke zu verbinden. Über die USB-Brücke auf ein USB-Hub auf ein USB Uplink. 7 SATA Stecker -> SATA-USB Bridge -> USB Hub -> 1 USB Uplink 4 SATA Stromanschlüsse 4 Lüfteranschlüsse für bis zu 8 Lüfter (12V) Optional: Mit der PWM-Funktion des Bridge-Chips, die Drehzahl der Lüfter nach Last anpassen ASM1351, USB5807C, EZ-USB® HX3PD oder ähnliche Chips Anforderungen: - SATA 3 (6Gbit/s) - SATA USB Bridge (10Gbit/s) - SATA USB-Hub Uplink (10Gbit/s oder mehr) Benötigt werden alle Dateien um einen Prototypen erstellen zu lassen. PCB to connect 2x 7 SATA disks with a bridge to USB over USB hub to USB Uplink 7 SATA connector -> SATA-USB Bridge -> USB Hub -> 1 USB Uplink 4 SATA Power connec...
Ich suche ein PCB Designer, der aus einer vorhandenen Platine eine Kopie macht. Schaltplan ist nicht vorhanden. Es ist ein Schaltnetzteil und keine Aufregende Schaltung.
Für unsere Torsteuerung brauchen wir eine Elektronik welche den Rolling Code Keeloq Microchip per 433Mhz mit der maximal erlaubten Sendeleistung gerichtet aussendet. Es wird die komplette Schaltung mit Layout benötigt. Die Maße der Leiterplatte sind fest vorgegeben durch das Gehäuse.
Für eine Leiterplatte wird ein Layouter gesucht, welcher die Deutschen Normen kennt und die Leiterplatte 10cmx10cm routet. Es handelt sich um eine smarte Torsteuerung.
Ich bräuchte ein einfaches Formular (das gibt es bereits in Joomla mit der Zusatzapp Fabrik) Mir fehlen allerdings ein p...erweiterbar wie z.B. M.2 dann A40000314 oder wie auch immer. 3. soll die nächste freie! Nummer automatisch nach Auswahl des Herstellers vorgeschlagen werden - verbrauchte/verkaufte Festplatten werden aktuell gelöscht - viel schöner wäre noch eine Art "Archivierung", dass die Verbrauchten Festplatten nicht komplette gelöscht werden, sondern z.b. mit A40000314 -1 abgelegt wird. 4. sobald das Feld "PCB Only" angehakt wird soll der Hintergrund leicht blau werden, sobald Fehler - Orange, wenn keines der beiden, dann soll alles hellgrün sein. ansonsten ist das Formular eigentlich funktionstüchtig, darum w&a...
Ich bräuchte ein einfaches Formular (das gibt es bereits in Joomla mit der Zusatzapp Fabrik) Mir fehlen allerdings ...Nummernkreis erhalten (10000314 z.B. für Seagate 20000352 für Western Digital usw.) 2. soll die nächste freie! Nummer automatisch nach Auswahl des Herstellers vorgeschlagen werden - verbrauchte Festplatten werden gelöscht - viel schöner wäre noch eine Art "Archivierung", dass die Verbrauchten Festplatten nicht komplette gelöscht werden, sondern z.b. mit 20000352-1 abgelegt wird. 3. sobald das Feld "PCB Only" angehakt wird soll der Hintergrund leicht blau werden, sobald Fehler - Orange, wenn keines der beiden, dann soll alles hellgrün sein. ansonsten ist das Formular eigentlich funktionstüchtig, d...
Erstellen eines Layout nach Vorgaben (Schaltplänen, Abmessungen)
Für ein neues Produkt wird ein AC/DC Wandler benötigt. Der Wandler soll in Form eines Schaltnetzteils mit dem IC von Power Intergration/Fairchild/TI etc. e...ld/TI etc. entwickelt werden. Eingang: AC Universal Ausgang: 6V / 0,6A max. Begrüssenswert wäre, wenn ein bereits auf dem Markt existierender Trafo z.B. von Kaschke eingesetzt wird. Aufgrund des eingeschränkten Platzes auf der PCB soll kein Optocoppler eingesetzt werden. Aufgabe: 1. Entwicklung der Schaltung mit möglichst folgenden Trafos 2. Design der Schaltung in Eagle unter Beachtung der EMV Aspekte (Maße der PCB werden vorgegeben) 3. Überprüfung der Parameter nach Prototyp Aufbau
Wir benötigen für mehrere Projekte längerfristig einen erfahrenen PCB Layouter mit entsprechender Ausbildung zum Erstellen elektronischer Bauteile im Bereich Mikrocontroller/Wireless Sensoric.
Gesucht wird ein PCB-Engineer, der eine Platine gemäß folgendem Entwurf erstellen kann.
Entwicklung einer Schaltung zur Anzeige des Signals eines Tankgebers eines Motorrads. Zum Einsatz kommt ein Tauchrohrgeber (2-polig) mit Schwimmer, der seinen Widerstand entsprechend dem Füllstand zwischen 33 Ohm und 240 Ohm ändert. Etwas...V zu reduzieren, falls die Batterie schwächelt o.ä. Zudem sollte der Messbereich in gewissem Rahmen via Dreh-Potis justierbar sein, um ggf. eine Feinabstimmung für "leer" und "voll" vornehmen zu können. Schlußendlich sollte ein zeitlicher Puffer (ca. 10-20 Sek.) implementiert sein, um das Schwappen des Füllstands während der Fahrt zu kompensieren. In erster Linie Entwicklung der Schaltung / PCB-Layout mit Anschlüssen für das Bordnetz, den Tankgeber und den LED-Barg...
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I'm looking for a professional with extensive experience in designing new PCBs. The ideal candidate should have: - Proven experience in PCB design - Proficiency in PCB design software - Knowledge of electronic components - Ability to work with minimal supervision - Excellent problem-solving skills Please note that the application of the PCB and its complexity are yet to be determined, so flexibility and a broad skill set would be a significant advantage.
...desarrollo de un instrumento electrónico MIDI de 75 teclas. El trabajo que tiene que hacer es proponer un procesador (Arduino, raspberri, etc ) , determinar las conexionas al pcb con la matriz del teclado, programarlo para que lea las teclas y un par de sensores mas y hacer que envie una señal MIDI al reproductor de sonido. Debe tener conocimientos en programación y electrónica. Actualmente, el proyecto está dividido en tres partes: teclado, procesador y reproductor de audio. El teclado cuenta con una disposición particular en matriz de 9x8 con diodos y debe permitir la lectura simultánea de hasta 8 teclas. El diseño del PCB está realizado, pero falta definir el procesador ideal para optimizar su funcionamien...
I am currently developing a...made some progress on this project and need assistance with the next steps. Current Development: I have created the PCB design using DipTrace, but it currently lacks an antenna that supports GSM and GPS functionality. The components I have used include the A9G chip for GSM/GPS functions and the STM32 chip for the main processing tasks. Requirements: - Design and integrate an embedded PCB antenna onto the smartwatch PCB. - Improve the PCB design for better signal integrity, functionality, and performance. Ideal Skills and Experience: - Proficient with DipTrace and PCB design. - Experience with designing embedded antennas. - Strong understanding of signal integrity and PCB optimization. - Familiarity with GSM and GP...
...Requirements: ✔️ Strong expertise in Keysight Advanced Design System (ADS) ✔️ Ability to train from beginner to advanced levels ✔️ Hands-on training with practical examples and real-world applications ✔️ Experience in RF/microwave circuit design, PCB layout, EM simulation, and system analysis ✔️ Strong communication and teaching skills Training Scope: ✅ Introduction to ADS & UI navigation ✅ Schematic design & simulation ✅ Linear & Nonlinear circuit simulation ✅ Harmonic balance & transient analysis ✅ EM simulation (Momentum & FEM techniques) ✅ RF system design & PCB layout design ✅ Optimization techniques & troubleshooting Training Mode: Online (Zoom/Google Meet) Duration: Flexible (as per the training plan) If you are an experienced ADS trai...
...re-design a simple small PCB for a prototype toy product. I previously posted this project on Freelancer and the awarded freelancer failed to produce a working design, over complicated it and cost me a lot of money to produce something that did not work. IMPORTANT - the project milestone payment will only be released AFTER a prototype is produced by JLCPCB and confirmed the be working. Therefore please factor this into your project timeline. About the Project: A low-profile USB 2 Type A memory stick is being incorporated into a prototype toy product. It requires a really simple small PCB consisting of: - USB-C socket connector - USB 2 Type A connector - 6 pin edge connector The low-profile memory still will connect to the onboard USB 2 Type 2 socket. The whole PC...
I'm looking for a PCB designer who can take my schematic diagram and convert it into a Gerber file. The project is focused on a small, mixed-signal consumer electronics PCB, and the final product will need to fit within a size of less than 10cm x 10cm. Ideal Skills and Experience: - Proficiency in PCB design software - Experience with mixed-signal components - Prior work in designing PCBs for consumer electronics - Ability to generate Gerber files from schematic diagrams - Understanding of small form factor design constraints
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Hola, Estamos buscando un ingeniero de RF que nos ayude a verificar y validar nuestro circuito antes de convertirlo al formato Gerber para la fabricación de la PCB. Nuestro diseño está hecho en AWR Microwave Studio, por lo que necesitamos a alguien con experiencia en este software. El circuito opera a 2.4 GHz, realiza adaptación de impedancia y filtrado de armónicos, y finalmente alimenta un LED. Ya hemos configurado la activación del LED, pero necesitamos un experto que revise el diseño, asegure que todo funcione correctamente y nos ayude a convertirlo al formato Gerber dentro de AWR. Si tienes experiencia con AWR Microwave Studio, validación de circuitos de RF y conversión a Gerber, ¡nos encantaría sabe...
Hola, Estamos buscando un ingeniero de RF que nos ayude a verificar y validar nuestro circuito antes de convertirlo al formato Gerber para la fabricación de la PCB. Nuestro diseño está hecho en AWR Microwave Studio, por lo que necesitamos a alguien con experiencia en este software. El circuito opera a 2.4 GHz, realiza adaptación de impedancia y filtrado de armónicos, y finalmente alimenta un LED. Ya hemos configurado la activación del LED, pero necesitamos un experto que revise el diseño, asegure que todo funcione correctamente y nos ayude a convertirlo al formato Gerber dentro de AWR. Si tienes experiencia con AWR Microwave Studio, validación de circuitos de RF y conversión a Gerber, ¡nos encantaría sabe...
I'm looking for an experienced PCB designer to create a PCB for an ATmega328 microcontroller. This project is aimed at prototyping, so the design should be robust and reliable. Key Requirements: - Incorporation of Power Regulation Circuitry: The PCB should have an efficient power regulation system to ensure stable operation of the microcontroller and connected components. - Inclusion of Input/Output Headers: The design should feature multiple I/O headers to facilitate easy connection to various peripherals during the prototyping phase. Ideal Skills: - Proficiency in PCB design software (e.g., Altium Designer, Eagle, KiCad). - Strong understanding of microcontroller circuitry, particularly with ATmega328. - Experience in designing PCBs for prototyping purp...
Hi, We are Remicorp SRL, and we are developing an innovative system for livestock monitoring and tracking using LoRaWAN technology. We have a clear idea and defined requirements for the product, but we need support with the prototype design in Cadence. We are looking for someone with experience in PCB design, LoRaWAN hardware integration, and low-power optimization to help us bring our solution to life in a functional design. If you're interested, we’d love to schedule a call to discuss the details and explore how we can collaborate. Looking forward to your response!
...simulating DDR4, PCIe Gen6 and 25Gbps streams in both Allegro and Altium. Key Requirements: - Expertise in high-speed interface simulations, particularly DDR4, PCIe Gen6, and 25Gbps streams - Proficiency in both Allegro and Altium software - Strong focus on accuracy of signal integrity - Experience with signal integrity analysis tools like HFSS, Keysight ADS, or SIwave - Deep understanding of PCB layout techniques for high-speed digital designs - Experience in simulating and mitigating crosstalk in high-speed designs The primary goal of this project is to ensure the accuracy of signal integrity in these high-speed simulations. Please provide your experience and any relevant project samples in your bid. The expected duration for this project is less than 1 month. Th...
Client requires a comprehensive CAD design in a 3d printable format. the design will be an enclosure for an Adafruit feather M0 with a rechargeable battery and a few other conponents. the design should be approx 60mm x 60mm x 60mm
...correctly interpret it. Minimal Processing Since advanced signal analysis is not required, the software should focus on rapid and efficient data acquisition and transmission, minimizing the delay between data reading and transmission. Code Comments All comments in the source code must be written in English. Deliverables Hardware Design Schematics and PCB layout files for the device. A Bill of Materials (BOM) listing all required components, including the microcontroller (e.g., STM32H), the piezoelectric sensor, the power module, and the FTDI chip. Firmware Complete source code for the microcontroller firmware, including: Initialization and data acquisition from the ADC. Initializ...
I am looking for a freelancer to design a custom PCB that integrates an Arduino Nano, an L293D motor driver, and connectivity for additional components like servo motors, an ultrasonic sensor, and infrared sensors. The PCB should be compact, efficient, and optimized for easy assembly. SAMPLE layout design attached ( resistor, capacitor and voltage controllers to be added as required ) Project Requirements: Microcontroller: Arduino Nano (ATmega328P) Motor Driver: L293D (Dual H-Bridge) for controlling two DC motors Servo Motor Control: Two male header pins for connecting two servo motors Powered by 5V from the Arduino or external power Sensor Connectivity: One female header (4 pins) for an ultrasonic sensor (HC-SR04) Two male header pins for IR sensors (typically 3-pin each:...
Aquí tienes la versión mejorada con ese detalle incluido: Title: RF Engineer Needed for Circuit Verification and Gerber Conversion in AWR Microwave Studio Hello, We are looking for an RF engineer to help us verify and validate our circuit before converting it to Gerber format for PCB fabrication. Our design is built in AWR Microwave Studio, so we need someone experienced with this software. The circuit operates at 2.4 GHz, performs impedance matching and harmonic filtering, and ultimately powers an LED. We have already configured the LED activation, but we need an expert to review the design, ensure everything works as intended, and assist in converting it to Gerber format within AWR. If you have experience with AWR Microwave Studio, RF circuit validation, and Ger...
I'm in need of a professional PCB designer to create a single-layer PCB tailored for the oil and gas industry, specifically wireline. The primary focus of this job will be ensuring the design can withstand high temperature operation. We already have proven designs that work great in low temperature environments (250F-350F). I am looking for someone who can take the designs we already have and update them to withstand high temperatures (500F+) Ideal Skills and Experience: - Proven experience in PCB design, specifically single-layer PCBs. - Prior work with PCBs for the wireline industry is highly desirable. - Strong understanding of high temperature operation requirements and how to design for them. - Able to deliver designs that meet industry standards for durabil...
Description: We are looking for a skilled hardware developer to create a specialized hardware module featuring two cameras: one Infrared (IR) camera and one RGB camera. The primary goal of this module is to enable face recognition functionalities. Requirements: Develop a hardware module that supports USB connectivity for seamless integration with Android devices. The module must utilize Android's USB Video Class (UVC) to allow live streaming and camera feed from both IR and RGB cameras. Candidates may either reverse engineer a standard camera module or design a new module from scratch to meet the project specifications. Goal: The end objective is to effectively capture live streams from both the IR and RGB cameras for face recognition applications. If you have the expertise and c...
...experienced PCB designer who can design a custom PCB for me based on a provided sample PCB. Key Details: - The PCB must adhere to specific dimensions (e.g. 100mm x 50mm). - The primary function of the PCB has not been specified, so flexibility and versatility in design are key. - The PCB should be designed with potential connectors and interfaces in mind, although specific types (like USB, HDMI, Ethernet) have not been pre-determined. Ideal candidates for this project should have: - Extensive experience in PCB design, especially designing based on sample reference PCBs. - Ability to work with specific size constraints. - Creative problem-solving skills to design for an unspecified primary function. - Knowledge of various connectors and...
...experienced PCB designer who can design a custom PCB for me based on a provided sample PCB. Key Details: - The PCB must adhere to specific dimensions (e.g. 100mm x 50mm). - The primary function of the PCB has not been specified, so flexibility and versatility in design are key. - The PCB should be designed with potential connectors and interfaces in mind, although specific types (like USB, HDMI, Ethernet) have not been pre-determined. Ideal candidates for this project should have: - Extensive experience in PCB design, especially designing based on sample reference PCBs. - Ability to work with specific size constraints. - Creative problem-solving skills to design for an unspecified primary function. - Knowledge of various connectors and...
I require the design and fabrication of two distinct printed circuit boards (PCBs), each complete with schematics, layouts, Gerber files, and a Bill of Materials (BOM) specifying component selection and library management. Design 1: Compact Sensor Interface PCB This design prioritizes a compact form factor and incorporates an HLK-10M05 power supply module with integrated safety circuits, including safety capacitance and common-mode inductance. The 5V and GND outputs are routed to the load. A 2.54mm pitch is to be maintained for all pin pitches where feasible. An ESP32-S3-DevKitC will be mounted via berg strips. The board requires the following connectors: Three 4-pin I2C connectors (VCC, GND, SCL, SDA) for interfacing with DFRobot SEN0537 (), DFRobot
...situations. - Active Balancing: This should be integrated, allowing for real-time adjustments and optimizations. - Short-Circuit Protection: Ensure the system can safeguard against potential short-circuit scenarios. Deliverables: - Complete design including simulations, schematics and PCB layout. - A 4-6 Layer board. - Gerber files for production. - Testing report demonstrating the system's functionality and reliability. Ideal Skills and Experience: - Proficient in Altium Designer with a strong understanding of PCB design. - Proven experience in designing Battery Management Systems. - Familiarity with MOSFET control and its application in BMS. - Ability to deliver comprehensive design documentation and testing reports. - Experience with creating 4-6 layer boards and...
I need to reverse engineer a LoRa watch PCB for functional replication. I have the original schematics and design files. However, I would like to make some minor improvements over the original design. Ideal skills and experience for the job include: - PCB design and modification expertise - Experience with reverse engineering - Proficiency in using design software compatible with the provided schematics - Ability to suggest and implement minor design improvements
I'm in need of a PCB design tailored for a Maixduino. This board should accommodate an RJ11 connector, capable of controlling 4 DC motors and 1 servo motor, along with connections for 3 and 4 pin sensors. These sensors will include IR, LDR, humidity and temperature sensors, and ultrasonic sensors. Key Features: - Dual power input: The PCB should be designed to be powered by both an external power supply and a battery. - Versatile sensor compatibility: It should support 3 and 4 pin sensors. - Robotics centric: The primary application of this design is for robotics. Ideal Skills and Experience: - Extensive experience in PCB design - Proficient with Maixduino specifications - Familiarity with robotics and related components - Understanding of power management in ...
I am looking for an expert in circuit simulation and PCB design. The primary purpose of the circuit is for an educational project, specifically focusing on power management. Key Requirements: - Design and simulate a circuit that manages power, suitable for medium power specifications (5V to 24V). - Create a corresponding PCB. Ideal Skills: - Proficiency in circuit simulation software. - Experience in designing PCBs for power management. - Background in creating educational electronics. The goal of this project is to create a circuit and PCB that can be used for teaching about power management, while also being functional and capable of handling medium power specifications.
I need a professional to verify the functionality of my PCB design, focusing on component interfacing. All components are already integrated; the task is to ensure they can communicate correctly and as intended. Key Responsibilities: - Verify component interfacing on PCB. - Assess signal integrity and power regulation indirectly. - Conduct tests according to industry standards. Ideal Skills and Experience: - Extensive experience with PCB design verification. - Familiarity with industry standards for PCB functionality. - Proficiency in assessing component interfacing, power regulation and signal integrity. Please note, the selected freelancer will need to strictly adhere to industry standards during the verification process. A detailed verification report in...
I'm seeking a proficient engineer with skills in steel prototyping ,PCB design, GPS integration, and app development. The task involves creating two prototypes of broadheads constructed from 420 steel, known for its durability and resistance to wear. The broadheads should be designed with flight, size, and weight in mind. The application will need built and the two link together for tracking. I want you to be able to complete the entire package . Key Requirements: - Integrate GPS and LoRaWAN for long-range, high-accuracy tracking capabilities. The GPS system should ensure quick signal acquisition and boast a long battery life. - The broadheads must be able to endure the rigors of hunting while maintaining optimal flight characteristics and manageable size and weight. - Design ...
PCB Design for Hotel Do Not Disturb Panel (Capacitive Touch & LED Control) Project Description: I am looking for an experienced PCB designer to design a custom circuit board for a hotel Do Not Disturb (DND) system. The product consists of two modules: 1. Indoor Module (User Control Panel) • A touch panel with two capacitive touch buttons: • Button 1: “Do Not Disturb” (Red LED Activation) • Button 2: “Clean My Room” (Green LED Activation) • Should toggle LEDs on the outdoor module when touched. • Compact and aesthetically sleek design (preferably thin PCB). 2. Outdoor Module (Door Indicator) • Two LEDs: • Red LED (DND Mode) • Green LED (Clean My Room Mode) • Must receive signals from t...
...to create engaging and informative PCB (Printed Circuit Board) blogs and articles for my website. The ultimate goal is to increase website traffic through well-optimized, high-quality content. The ideal candidate should have strong expertise in electrical engineering, PCB knowledge and have published related articles on different websites. Kindly share your sample published articles. You will write two articles as a sample on " Top 15 PCB software" and " what are factors for PCB prices" . I need human written content, no ai, Chatgpt or copypasted content is needed. The content should be SEO optimized to rank the Website SEO, it will be reviewed by plagrsim and ai check. There is a lot of content and articles to written so we need an SEO...
Project Details Need of a compact, double-layer PCB designed for a digital circuit. The project involves creating a Gerber file that is ready for printing, accommodating the given circuit diagram. The PCB should be small and compact, suitable for accommodating a digital circuit. The 2 ESP32, SIM800L, MAX 485 and ADS1115 will be mounted on a 2.54 mm pin female single-row header strip. All connectors will use 5 mm PCB terminals with standard 0.1” (2.54 mm) spacing through holes. Components Ref: ESP32 38Pin Development Board: Hi Link HLK-PM01 5V/10W: 2.54mm Pin Female Single Row Header Strip:
... It is recommended to use one of the options: ESP32 + Quectel BG96 (flexible solution with separate components). Nordic nRF9160 (modem and MCU in one chip, simpler integration). Development of schematic and PCB design: The board should include: Modem (Quectel or integrated in Nordic nRF9160). Microcontroller or integrated chip. eSIM or SIM card slot supporting operator 1NCE. Antennas for LTE-M/NB-IoT communication. Sensor connections via UART/I2C/SPI (depending on the task). Power interface considering power consumption. Prototype manufacturing: Ordering the printed circuit board (PCB) and soldering components (or outsourcing). Firmware writing: Main firmware functions: Connecting to operator 1NCE via modem (APN: ). Data transmission via MQTT protocol. OTA firmware upda...
Hi Viktor, hope you are safe and well, haven't heard from you in a long time Are you interested in doing a relatively basic task? You made something for me in the past so happy for you to adjust it for new requirements.
I'm in need of a proficient PCB designer who can create a double-layer PCB for use in industrial machinery. The PCB will need to support functionalities related to motor control, hydraulic systems, and linear actuators. Key Requirements: - Design of a double-layer PCB - Motor control functionality - Integration with hydraulic systems - Compatibility with linear actuators Ideal Skills: - Extensive experience in PCB design - Understanding of industrial machinery requirements - Proficiency in designing for motor control and hydraulic systems - Familiarity with linear actuator systems . The expected size of the PCB is compact to fit within limited space. The PCB should operate on a low voltage, either 12V or 24V. Please include standard...
I have PCB layout files in Protel 99SE that need to be converted to Gerber files. The conversion should include specific layers such as the Top Copper Layer, the Silkscreen Layer, the Solder Mask Layer, and the Bottom Copper Layer. In addition to the Gerber files, I also require the generation of Drill files and Pick and Place files. Ideal skills and experience for this job: - Proficient in using Protel 99SE - Experience in converting PCB files to Gerber - Understanding of PCB layers and their applications - Ability to generate additional necessary PCB files.
