Esp32 nvs example jobs
We need someone to arduino code for esp32 with sim800l and rs485 module. It will also have pubsub library to publish data. We will send you the ports thesim800 and rs485 module will be connected to.
We use ESP32-S3 and sdcard with wav files. We need to implement Fast Fourier Transform (FFT) over .wav file, calculating spectrogram of the audio, energy or amplitude of the signal, mean value, and some other details that will be provided by chat. As input you will use the .wav sample I'll provide, reading it from SDcard. As development you will use the details I'll provide in pdf format. In order to validate the development, variables used in equations will be storage in array or vectors. Project will be donde in Virtual Studio Code and C++.
I created 2 different Arduino workable programs on a sparkfun esp32 thing plus C board. I need to have 1 of the 2 programs loaded and executed via OTA from wifi (pc). Only 1 of the 2 programs will be running at time.
...0-36V (ESP32 on ports GPIO36, GPIO4) 3. Two analog inputs to measure current 0-20A and volts 0-36V using INA226 via I2C - GPIO22(SCL), GPIO21(SDA) 4. Two Digital inputs with high voltage protection, working voltage 0-36V - GPIO5, GPIO27 5. Two Digital Outputs via Open Drain N-MOSFET (AO3400) - GPIO25,GPIO26 6. External module SIM7080G LTE connected via 2mm Pitch Pins to Serial 2 - GPIO16(RX), GPIO17(TX) and powered by the main 5V power: SIM7080G RX<---TX(GPIO17) ESP32 SIM7080G TX--->RX(GPIO16) ESP32 7. ESP32 Dc-DC Step-Down from 5V to 3.3V, from the main 5V supply (MP1584EN or siotable) 8. The I2C pins GPIO22(SCL), GPIO21(SDA) 3.3V from the ESP32 and GND to JST-SH 4-Pin SMD Connector 9. NEO-M8N module connected to Serial 1 - GPIO12...
I have some basic code written for arduino, running on an Esp32 and NodeMCU. Code measures electricity using the esp32 and controls a relay (hot water cylinder) on the NodeMCU based on electricity measurements (see NodeMCU code attached) I need someone to modify the code on the NodeMCU so that it records how long the relay has been on in the last 48hrs and switches the relay if the cylinder hasn't had sufficient heating. Also, add a manual "heat for 2hrs" function that can be activated on Blynk webpage.
we required PCB circuit design using esp32 c3 module. target of the project is to minimize size of circuit.
Control and data communication between ESP 32 for the drink dispensing system.
We use ESP32 module connected to sdcard where we have a .wav file. Our .wav file has the soud displaced from zero and we need to normalize(remove the offset) and amplify it. Project will be done in VSCode for Arduino ESP32. See the attached documents.
I need modified so it will show RPM in the 10-40 RPM range with a sensor going HIGH on each revolution (IR sensor). is an example code of the library. is at I am running code on Arduino IDE on an ESP32-WROOM-DA
...directly connected with wires somewhere to CAN and power supply, and it's controlled through an android app. So my idea is to use OBD2 dongle based on ESP32 with some can transceivers, or just ESP32 with can transceivers connected anywhere to CAN and power supply. Read car CAN data of driving speed, RPM-s, throttle position and maybe some more... (It can be fine tuned later with more data) Use those data with some engine sound samples from memory card to generate output sound which will match the actual state of the car. Some useful informations can be found at this comunity There's an app and "CanSee" OBD2 ESP32 dongle that those guys developed which collects and use all of those data that I need from ZE cars. You don't have to worry ...
We need to program an esp32 to be very deterministic and design a very simple pcb to use it on our product
Re-create the "Main Design - Back of Shirt" file with the left side similar (re-create it almost identical) to what it is (blue tech hologram of the skull), but the right side being a traditional bone skull, symmetrical to the left side. The feel should be that the hologram is taking over (transforming) the bone skull. Add text saying "Reaper Squad" at the top or bottom of the design (or Reaper on top, Squad below the design) depending on what looks better. Use the "Sak Yant Accent Prints" around the main design to add accent flare and a bit of a backdrop. I would like the colors to be white and this shade of teal: #00FFFF - it will be sublimation printing on black shirts only. at the very bottom of the back - IG logo @MuayThaiTechnician right above it...
Need to identify, record new face, be able to add names and play audio when recognition takes place. Would be using an ESP32-can board & HiLetgo YX5300 UART Control Serial MP3 Music Player Module.
Hi, I'm looking for a graphic designer who can design illustrated brainteasers just like the attached example, it'll be for an android game and I expect at least 40 drawings just like the example so bid on designing the whole thing not just 1 - I'm fine with a few reusable assets across multiple pictures but I'm looking for originality in each one. Please include the number "72" in your bid so I know its not an automated bot
I am looking for someone who can design a flexible PCB for me which will include various VL53L0X sensors and the ESP32 Chip.
...time and later we can add fets to control relay coils. Any relay (RLY1, RLY2, RLY3) have two pair of working contacts (C,NC,NO). Relays is UD2-4.5NU made by NEC Japan. First working contact will be used to control, second working contacts will be used (C,NO) to return relay state back to input of Slave. Slave device will be placed at ground flor at metal distribution cabinet. Master device is (ESP32 SX1276 LoRa 868MHz 0.96 Inch Blue Oled Display Wifi) module that is act as LoRa gateway. Form one side its communicate with Slave via LoRa protocol and from other side it communicate with application via WiFi 2.4Ghz. Module have display to simply show states of slave device (3 inputs and 3 outputs). It have at two inputs: input1 send command to trigger all 3 relays on Slave device O...
Hello all web developer I wants to develop a website which will have same functionality same as price is negotiable. Apply your price with ETA. More on PMB
As requested this is the project to update the ESP32 BLE sketch to be able to play MP3 directly from the ESP32 instead of the previous DFplayer and SD card
I am new to ESPIDF Visual Studio. There is some toolchain error is coming and also I need to change ESP32 type from Configuration.
I have a webserver built-in the ESP32 and I have 2 types of API for sending SMS and emails notification. The SMS is good but the EMAIL was setup using the API of but they system does not work anymore. I would to change to another email API and edit my current ESP32 files Thanks for your time
I am building a MQTT system and need from anyone that could guide me or help me figure out a script for connecting with the MQTT server when my SERVE...that could guide me or help me figure out a script for connecting with the MQTT server when my SERVER WEBPAGE is OFFLINE, I other words, when I have the HTML page OPEN on my BROWSER I could press buttons and send to my Electronic module ESP32. The issue is when I closed the HTML then the ESP32 when sending signals from ESP32 module to SERVER will not get signals. I need some type of API to call the server and able to store the DOOR status of every MQTT ESP32 module. I am creating a IOT server but the SERVER needs to be open and when I triggers the ESP32 door inputs it reflects on the SERVER but when clo...
Our esp32 based gateway collects data over different ways (modbus, http, meterbus) and sends them using mqtt to our server. unfortunately ther is a memory leak which makes the device stop after some time. we are using esp idf as development plattform and will provide remote testing and debugging access to our test environnment. we do NOT have the option to use jtag for debugging
We use ESP32-S3 and sdcard with wav files. We need to implement Fast Fourier Transform (FFT) over .wav file, calculating spectrogram of the audio, energy or amplitude of the signal, mean value, and some other details. More details about the project development will be provided by chat.
...over and finish the last small bits and pieces of a project. We made a project with one LCD screen for a mega, and now it got changed for a 2nd LCD screen with ili9341 instead, the complete UI (need some small graphic corrections)and most of the functions are copied from the old to the new code, but a few a missing, like receiving the UART signal from an esp32 to add money to the top of the screen, and payout signal back via UART signal to ESP32 and also an UART signal to a 2nd mega, in order to turn on relays. Every part described above is in the old MEGA code and was working, exactly same functions must be added to the new MEGA code, and thats it. Its a VERY simple task for someone who know what they are doing, so please dont bid unless you can start very soon, and hav...
need help with post sample message me
I'm looking for an extension/modification to an existing threeJS example... The example I am looking for will be different in that... 1) the user controls the scene movement (can zoom in, pan and orbit) rather than having a continuously rotating scene 2) the user has to click the mouse to make the selection of the point 3) the user is returned the id of the selected point and the point changes color
Hi, I have a simple ESP32 circuit on EasyEDA, and need some assistance I am very busy and have to get it done right the first time, I need a second pair of eyes to verify the work. The order will be place with JLCPCB and your task will include: 1. Double checking the design. 2. ComponentsBuilt should be done by JLCPCB, 3. Ensuring components are the best quality, best fit and cheapest 4. Routing of PCB (creating best paths and width - specially for powerlines) 5. Assist with ordering (BOM, ....) 6. Writing a simple code to ensure all components work. Your testing code should cover, the following tests: (When Wireless and Bluetooth are ON) A. Buzzer should sound a melody and beeps (very very loudly), B. LEDs should flash, C. Heat s...
Hi Aldo B., I noticed your profile and would like to offer you my project. We can discuss any details over chat.
Need someone to make App in flutter for IOS and Android along with ESP32 OTA BLE CODE
Hi, We are looking for technical writers to write on projects related to microcontrollers. The user must have worked on Raspberry Pi, ESP32 and arduino. It's a long term project and we are looking for multiple writers. Thanks.
We have an RFID Card + QR code reader, developed with NXP PN7150 IC, a QR Code reader module, ESP32 as the microcontroller, and some other peripherals. The PCB ,antenna tuning, code(micropython)is done in-house. The RFID card reader is used to read , ISO14443A ( MIFARE, Desfire, ) and ISO15693 Cards. Only CSN reading is done for now and no key or key management is implemented whatsoever. We are successfully reading the above cards. Now, we are facing a few problems in the functionality 1- The read distance is very low (only about 15 mm read distance for mifare, desfire and 45 mm for iso15693 cards, this should ideally be around 45 and 60 mm respectively.) 2- The read speed is a little bit less than optimal, the card has to be presented and held for a little less than 1 second, t...
I need help with HomeKit SDK. Specifically in regards to HomeKit Accessory Protocol Release 17. We are coding in C++ for ESP32 (Espressif). DO NOT CONTACT UNLESS EXPERIENCE WITH HOMEKIT and MFI
In this we can control our home appliances in single click ,it means the appliances can control through smartphone. in this we can only provide a wifi connectivity.
Hello, I have a current PCB layout that I am using for one of my projects, designed and assembled by me. Nothing too fancy, I am not a hardware pcb engineer. The pcb uses Arduino with BLE HM-10 and relays. I want to highly improve it, switch the Arduino to ESP32, use transistors and fully assemble it on I am looking for someone senior in PCB design that can redesign the current schematic, catch possible problems and that can do simulations before ordering the PCB. I can share the schematic in private. Thank you! Marius
As discussed, please change code to work on ESP32 and add 3 features from previous project: 1. Trigger relay if no connection 2. Update over the wifi OTA 3. Static IP All features are available on first project.
I want the ESP32 to work in deep sleep mode. 1) What I want is the following: with only one momentary button (obviously this one that is connected to a gpio wake up pin) to switch between two tasks. Pressing once the momentary button to send A data (this is the task "A") and pressing again to send B data (task "B") , if press again send A data, and so on. (for example sending data to another ESP32-receiver) After the task, the ESP32 must be deep sleeping. 2) Moreover , when the ESP32 resets (lose its power supply and gets it back) I want the ESP32 to send again (without pressing the button) what it did in last time before the power cut off, for example if last time had sent the data A, before the power cut, now after...
We have a current commercial system that runs on the dsPIC33EP512GP506 (Ansi C code) which is currently unavailable. Also we want to take advantage for future development of the capabilities of the ESP32 S3. This project has 3 key elements: 1) Redesign the current circuit board to be exactly the same size, same plugs, same mounting holes and peripherals but change the microprocessor. Will require new schematic and gerber files 2) Migrate the C code especially device drivers to run efficiently on the ESP32 S3 ensuring software timers work at the same speed as the current ones. 3) Build 5 prototype boards with all components to fully prove the design. We will provide 2 sets of peripherals to the freelancer. Peripherals are: 1) 4 x 16 character LCD (including back ligh...
Create a small example to help me start with STT on raspberry in python ( or c++ ) with following features: Start Coqui STT Engine directly after boot and play mp3 on 3,5mm output when Engine ready for listen STT on usb mic. Python example ( Microphone VAD streaming ) for this is in coqui github. show two different sample jpgs on hdmi1 and 2 fore 5 seconds Show rasp OS cmdline on hdmi1 and change cmd line text color to green / play demo video on hdmi2 in loop print every transcribed Speech text in cmdline but Listen only by Hot word ( for example "ADAM" ) for actions After Hotword found play mp3 answer on 3,5mm output and listen on following sentence of user Depending on appearence of two keywords in whole string after hotword do the following Play mp...
Hi there, I have an ESP32 with a simple arduino code that exposes two characteristics, one push notification and one read/write characteristic via BLE, see attached. I need a React native app (Visual studio code with Expo) that via a button press scans for this device and connects to it. Once connected, it should display the value notified from characteristic 1 in a simple text and continously update it when a new value is received. It also needs a button that writes '0' (zero) back to the read / write characteristic. Thanks! Marc
I am looking for an experienced developer to help debug an Arduino code. I am interfacing a 3electrode sensor with LMP91000 AFE then getting the readings via the Analog port of ESP32. The readings so far are not satisfactory/accurate. I am attaching 4 files which may give you an idea of the issue.
...to create a mesh of more than 100 ESP32 nodes devices each of which is connected to load cell using HX711, the data of these nodes are sent to AWS cloud using MQTT protocol using ESP32 root node using local WIFI router. You should write the firmware for ESP32 parent node device which communicates with HX711 (24bit ADC convertor) which is further connected to a load cell. This node firmware should include following 1) Auto Calibrate functionality 2) Tare functionality 3) Minimum Threshold value functionality Each ESP32 parent node device reads the data from HX711 after every “X” (5/10/15/20/30) second and if the difference between the present value and the previous reading value is greater than minimum threshold value then the Data is sent to ano...
Hi, as discussed. I need you to program my ESP8266/ESP32 which has a keypad and a screen to send an email with 2 inputs from keypad and another 2 which is hard coded. Deliverable after 2 days (Monday).
hello I have now a contest for my design and the home page is finesd, i looking for a developer that fix the home page and the text forums. i have a lot of pages and this is the first step.
I need some help with CCtalk and to create an interface for a coinchanger. This is a project that is very close to what I want to do: It does not have to be arduino. ESP32 is an aternative. PIC another. I have some Arduino skills and are able to create the setup in Sweden. Some of the development will be thru TeamViewer. You need to have a CCtalk host to be able to verify your work. I will copy your work and apply it to a Comestero coinchanger. The task is to have 4 buttons. * 10 SEK * 20 SEK * 50 SEK * 100 SEK (option is 5 buttons and 200 SEK) When a button is pressed the coin value is sent to the Comestero coinchanger and 20SEK = 2 tokens from the coinchanger. The buttons will then be replaced
I need assistance with developing a Qi Wireless power receiver and ESP32 controller board. It is a simple and standard ESP32 design, with addition of standard Qi Wireless power receiver circuit. ComponentsTechnologiesSkills required: Qi wireless charging receiver ESP32 Servos Voltage regulators RGB LEDs Piezo passive speaker Temperature Sensor Moisture Sensor I2C Programmer circuit (this might need to be removed due to size constraints) PlatformIO C programming language EasyEDN Your responsibilities include: 1. Produce and validate the design. (Including Qi Wireless circuit and ESP32 controller) 2. Assisting with Bill Of Material (BOM) 3. Ensuring the PCB manufacturers have the components needed. (eg: jlcpcb , nextpcb , ...) 4. Writing a test code to ensure...
I need assistance with building a PCB on EasyEDN. It is a simple and standard ESP32 design, placed inside a small compartment. The components include: 1x ESP32 2x Servos 2x Voltage regulators 1x RGB LEDs 1x Piezo passive speaker 1x Temperature Sensor 1x Moisture Sensor I2C Programmer circuit (this might need to be removed due to size constraints) PlatformIO C programming language Your responsibilities include: 1. Complete and validate the design. 2. Assisting with Bill Of Material (BOM) 3. Ensuring the PCB manufacturers have the components needed. (eg: jlcpcb , nextpcb , ...) 4. Writing a test code to ensure all components functioning as desired correctly. (Servo movement , LED blinking, Piezo speaker siren & melody)
I was working on a project with an engineer but he couldn’t finish it because I wanted to change the circuit From Arduino to ESP32 I have the codes he made for the Arduino I can share it with whoever can help on this
