Microcontrolador Jobs

I want to build Water level indicator using Ultrasonic sensor "JSN-SR04T-2.0". This is water proof type sensor as shown below. I want to use STM32F103 "Blue-Pill" board as shown below. The Water tank is 5 Ft in height and water is filled in it upto 4 Ft. The sensor will be fitted at the top inside the tank. I need to use 4 LEDs to glow to show the water level at each 1Ft hei...

I am looking for an engineer to build a disturbance observer to estimate nonlinear unknown disturbances for quarter automobile model. More details will be discussed in inbox.

Esp32 Sim800L EVB (with internet SIM) 2 ch RELAY Switching ON OFF using GPRS or th AP / STATION mode using ESP config (th password and command) by creating webpage so that relays can be operated from anywhere using internet or SMS ESP32 and SIM800L based RELAY SWITCHING On OFF VIA SMS or GPRS or both COMMANDS TO GIVE for sms S11 to switch relay 1 on S10 to switch relay 1 off S21 to switch relay...

I am looking for the engineer can modify the pcb included MCU , lots of components ,and several connectors base on the pcb as attachments .

Hi there... I am doing a small project that required PCB based on 18650 batterie which power the entire system. The PCB should be compact. The PCB will be powering to 3 different consumers of around 1A. Exigesting standard PCB based on 18650 batteryes can also be used or intregated for simplify the job.

Hello, I need software to operate arduino/Raspberry pi based underwater drone. Drone needs to live stream HD (at least 1080) over VDSL twisted pair or Cat 6. Wired and wireless networking, TCP/IP protocols expert knowledge required. FPV live streaming and remote control system design. Drone needs to display orientation, inclination, heading, speed, depth, moisture, temperature etc sensor data as ...

I am looking for expert who can design PSR-aware low dropout regulator. If you don't know PSR, Don't bid,pls. It should use PMOS/NMOS/both focus on PSR improvement. You should provide me schematic,simulation results,charts and graphs, and also Provide result analysis. I will discuss in details on chat.

Making simple arduino code for small robot with BLDC motors according to sheme ( send to request )and arduino pin layout and making simple android application for driving this vehicle according to algorithm ( send to request) and uploading it to the google app store.

we are looking for someone who create a business plan for hardware/iot designing company for startups purpose.

we are looking for pcb/chip designing for some work

Hi Paul W., I noticed your profile and would like to offer you my project. We can discuss any details over chat.

Please find the image for the application circuit. I have a power source which generate 400Vp-p 1Hz square wave. This power source is connected to a load (R_Load). Now i want to measure the current flowing through this R_Load. Current will be in range of 100uA to 1.5A. I need accuracy in microampere.

Need Experienced Firmware Developer for One of My Client, specially using Rigado BMD 300 Evaluation Kit, Developer needs to know about sensors Like BLE, Gyroscope & Accelerometer. Also need Protype mobile App to receive GForce Data On Going Maintenance can be offered for future if work is reliable.

Its about ESP32 webserver on Arduino IDE Sketch WORKING WELL- only cannot find where problem is- that MQTT are works ONLY IF WIFI IS CONNECTED, BUT THE WEB SERVER WORKS OK WITHOUT WIFI- ETHERNET BASED. Need to fix the source code to have MQTT works on ETHERNET

Hi,we are from matoshri electrics pvt ltd ,we require design for esp8266(wi-fi)based 7w bulb esp8266(wi-fi)based 9w bulb esp8266(wi-fi)based 12w bulb esp8266(wi-fi)based 20w/24w tube light Please check the required design sizes

I need a design of a device that is able to generate random frequency in a setted range (for example 50Hz - 200KHz). This device should be connected to a piezo or a vibromotor. An amplifier needs to increase or decrease the intensity of the vibration. With an User Interface is possible to setup the parameters (frequency + intensity). Please note: I need only schematic and PCB design.

We are designing things that help people with physical challenges and limited movement including L.I.S ( Locked in syndrome) We need a basic sound module. Think of it like a really basic e drum module. It will have 4 trigger/sensors (that we will provide) It needs to play 4 .wave file sounds, one for each trigger sensor. Like a drum module it needs 10 banks so the user can choose a set of 4 dif...

Developers for this project must posses rich skills in all three of the following areas, 1. Hardware - PCB engineering for the production of a daughter board that consists of IO, USB Ports, RS485 Ports, and Ethernet Ports. Case design for housing the finished product. 2. Software - Android custom application to channel communications between the daughter board and a smartphone as the motherboard...

What is needed to be ported is a emulation for the EEPROM DS2431 where the microcontroller acts as a DS2431 eeprom (as slave), right now it is working on arduino and it makes the same behaviour as described in the ds2431 datasheet in terms of timings of the commands (verified by a logic analyzer) from the master such as ( write scratch pad ,read scratch pad, copy scratch to memory ,and read memory...

Its about ESP32 webserver on Arduino IDE Sketch WORKING WELL- only cannot find where problem is- that MQTT are works ONLY IF WIFI IS CONNECTED, BUT THE WEB SERVER WORKS OK WITHOUT WIFI- ETHERNET BASED. Need to fix the source code to have MQTT works on ETHERNET

Simulate with arduino a DS2438 with temperature an dhumidity captor 1wire component

Components include Servo motor Stepping motor Light sensor 9” touch screen Hard disc (Solid state) 250 GB+ Ram 8GB + On Button Wifi, blue tooth, Ethernet connections,… USB 3.0 .....

we need to design an security keypad to acces the office with memory of the codes entered,timestamp, low consumtion, (should run on coinceil batteries minimum one week) software to download the data. It should be verry low profile, thikness no more than 3mm. Features: 1- based on ATmega procesor low power consumption beetwen 1,7-3,6 qfn or udfn package 2- flash memory AT25CY 042-MHN-B or equival...

Hello, I'm making a robotic prototype and need some help with writing the control software. It's essentially a 3DOF stewart platform, driven by 3 hobby servos. You can use arduino or raspi. I have dedicated pololu servo controllers, so the three PWM outputs should be all we need. Only two movements required, sometimes together: 1. Z axis, up and down 2. Precession (image attached), w...

Hello, We are looking for a FPGA electric engineer who can help us engineer a FPGA board, customize an existing board. Preferable who can also develop in Python and C to connect the FPGA board with a RaspberryPi, and develop programs on both boards. You will receive project information later.

What we have: - C# WinForms app that, based on some configuration done by a user in the interface, generates a STM32CubeIDE project, fully compilable from the IDE What we need: - C# WinForms app that does the following: - compiles the CubeIDE project (using GCC for ARM compiler) - connects, via USB, to a STM32F407 uC (STM32F4 Discovery board), after a match with it's 96-bit unique IDE ...

I need Schematic diagram and Gerber file for digital weighing scale .It need to be arduino based or with atmel atmega 2560 based. Its A/D convector need to be ADS1232 and display driver IC need PT6964 chip.

Need current home crestron system updated and cp3 processor programmed

A person who has strong knowledge esp8266 and cloud service can bid.

We are currently looking an electrical engineer to take on several small projects for us. These projects will focus on PCB layout (Altium required) although there may be additional design work too.

I need and expert who can Design PSR-aware low dropout regulator using PMOS/NMOS/both focus on PSR . It is main purpose to imporve PSR. If u don't know PSR, pls don't bid.

Design the PCB layout and required programming. Select the required components (Digital Encoder, micro USB, 3.5mm aux port, ect) Selected components must be readily available from reliable suppliers. Provide necessary files for manufacturing process of completed and programmed PCB. Provide feedback and improvements on design.

Build Application for Raspberry Pi to connect all DLMS Meters. The communication to be via RS485 port.

The aim is to transfer existing Atmel 8051 firmware (more than 21) to a new platform based on STM8 microcontroller. The ideal candidate will have working knowledge of one or more communication protocols such as SPI, RS232, RS485, USART, I2C and ADC, DAC interfaces. We are seeking candidates that have knowledge in the system design and implementation of embedded firmware applications. Knowledge and...

Hi there, I'm looking for help to develop humidity/temperature sensor using SHT3x sensors and esp8266soc or equivalent low cost boards. if you can handle this then bid thanks

Looking for someone having expertise in Arduino and SAMD21 and a sigfox modules and having good command over ATMEGA328. i will share further details of task in chat.

I want codes for building a IR blaster for Air Conditioners which can work with all Air Conditioner brands available in India like Samsung, Hitachi,LG, Carrier, etc. Also , the code should be able to update itself for any new air conditioners brands or model introduced in the market. We are using ESP 32 micro controller. Only professionals who have relevant experience and who have worked on simila...

The device is ready. The project is to develop the firmware for nRF5240 to drive AFE4404, get PPG waveform and heart rate, control sampling rate, and BLE. You have to work remotely on my PC.

We have 4 Tecan Cavro XC pumps that dispense fluid on a platform through nozzles that move linearly across a surface. The whole apparatus is controlled by a small Siemens PLC. Our programmer has done most of the work but has some issues that he can't correct. We need a freelance PLC programmer who is familiar with Tecan Cavro XC pumps.

I have a product idea for an add-on to an electric eye timer. The product would involve a rechargeable batter, accelerometer, gyroscope, and RF transmitter. I need this device to send a signal based upon two motions: 1 - When the device goes from one orientation to another (imagine holding your arm up in the air, then dropping it like you're telling two racers to go), 2 - When the device stay...

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I have a project almost ready looking for someone who can make it perfect and fix the errors. Also some other details are needed like how to make the whole model.

I have a project almost ready looking for someone who can make it perfect and fix the errors. Also some other details are needed like how to make the whole model.

The task is to modify the PX4 flight controller ([iniciar sesión para ver URL]) flight stack code and/or middleware to allow for individual control of up to 12 servo motors for a multi-copter. The final configuration should be capable of allowing for stable high-performance flight. Further the code should be modified to allow for an ideally indefinite number of servos to be used, with a tar...

I am looking for a mechanical design of the food dispensing vending machine which accepts coins, wallet and bank notes. The basic structure is ready. Now, what we need is Internal structure design, Software to read the inputs and Control circuit or motherboard to relay informations and dispense the food. It has to be connected to an android tablet. The food quantity is 20 kgs and water is 20 l...

I am developing a product which requires a microcontroller board. Most of the work is done and now I want to provide RFID security to my product. More details will be shared in further communications.

i am getting problem in uploading the program it show that lesd space

I need an app which get connect to my arduino via bluetooth or wifi and sends the phone's current location on text to another phone and receives a picture amd upload it to google drive and also send its link to that same msg , when i press switch on arduino. Ex. 1. App connected to my device (which have camera) 2. When i press a button on device , camera clicks a picture . 3. Picture sen...

We are looking for a computer programmer to integrate raspberry hardware sensors in to a raspberry pi OS system. The system will write code to integrate the following hardware - This is project 1 of 3. Touch Screen Infra Red Camera Sonar Sensor Peristaltic Pump Video Camera Temperature / Humidity Sensor Wi-Fi to upload videos to a cloud storage system GSM (possible to use to upload to cloud sto...

I need a programmer who has experience with arduino coding.