Microcontroller Jobs

I would like to build a firmware for ESP32 , the main functionalities are: - LCD - Calling REST APIs (Http) - Connecting to Wifi - Reading from peripheral through UART - Read/Write to SD - Show connection problem or wifi status , and try to reconnect - Over the air firmware upgrade support Designing custom PCB is optional

I need a code for arduino and the language is c++ for this project: Our project is an automated pillbox: It has arduino uno wifi, LCD I2C, keypad 4*4, buzzer (alarm), 2 IR sensors, 2 micro servo motors. 1- the patient will set the pillbox he will enter date/time. 2- he will choose number of medications (1 or 2). 3- he will enter the time and number of pills for each medication. 4- when it’s time to take medication 1 alarm will go on until the patient press the button on the keypad. 5- the door of medication 1 will open using micro servo motor. 6- there is IR sensor inside the compartment of medication 1 to sense the medication has moved or not. 7- the patient has to conform taking the medication if yes number of pills for medication 1 will reduce by 1 and upload to the cloud...

It is necessary to connect (write firmware) the nrf52840 microcontroller to android phone using Bluetooth Long Range (Coded PHY). It is necessary to control (turn on/off) the LED connected to the microcontroller from the phone.

Hi I need a motherboard PCB with a DC DC converter from 12V to 5V. It will be attatched to the motherboard: * Rasberry PICO * Can PCB * 6 buttons * 9 LED The DC DC converter need to have short circuit protection and the Canbus connector need TVS diode. Se the files for more information. Step 1. Make a chematics Sted 2. Make a PCB with production files

Pair a gas sensor ( Bosch) with any raspberry pi device.

start with -> i am not a bot. I need a 2kW design for DC to AC inverter. Schematic, plus layout and source code.

Note: I'm looking for developers that have previous experience with GreenPak ICs I have a sensor that consumes ~300uA at 3.3v and I need to reduce it's power consumption by duty cycling it. The GreenPak design will need to power up the sensor, read the differential analog output, store the number of changes in a counter then power down the IC. The counter will be available via I2C for an external CPU.

- I need someone to send data to an LED panel. - The driver being used in the hardware is mbi5124gp.

I need a test program to communicate between ESP32 (Sender) and STM32FO30F4P6 (Receiver). Please NOTE that the freelancer MUST test program using the EXACT model of the STM32 above via RS485 protocol. The code to send can be 4 digits long. On the receiver side, you can display SEQUENTIALLY 4 LEDs starting with PA5, PA6, PA7, and PA9 based on the code you send. For example 1000, 0100, 0010, 0001. That way each LED blink ON/OFF based on the information received. DO NOT SEND hex files UNLESS you are using the exact STM32. I have included the design files for your information. The winner is determined by DELIVERY SPEED and successful result. All files for STM must be written so that they can be imported via STM32Cube IDE. ESP32 file (Arduino IDE)

I need an electronic engineer to help me design an RFID device connected to an interface powered with 2 power sources (battery and car dc cable ) The person has to be proficient in electronics and IOT

Requirement: Deadine: 6 hours I am looking at setting up Ethernet3 to detect my MAC address on my WIZ550io (which has built in MAC address) and then host Apple midi server using EthernetBonjour. Can I send you my code and can you work out why it’s not working? If you are familiar with Ethernet3, AppleMIDI & EthernetBonjour libraries in arduino IDE? Note: Please check the attachment

Expert experience with home/office security controllers. Want a cheap Programmable Controller with 3G/4G enabling multiple sensors, cameras and alarms. Basically if a sensor is triggered I want the camera in the same zone to take a video and send to the cloud over 3G/4G. Its an IOT programmable controller. There are many in the market but I am looking for a price sensitive controller. Ideally want a controller that is expandable with regards to sensors/cameras/alarms etc I believe this can be sourced but if not, I'm open for someone to develop it. timeline is 7 days

The 4 Data input panels will have a UI with Keypad for data input. The data should be stored in an excel sheet/google sheets/ any other data representation method. As it is an industrial setup, we need keypads that will ensure rugged usage. None of these panels will be connected to any of the machines in the industry. We just need this for data tracking of our products. So the user will just input the production data and that data needs to be saved some format.

I want to evaluate if I can use BLE 5.1 direction finding to estimate the angles between multiple devices in realtime. The devices will be less than 4m apart. Please see attached visualization.

I need a soldering job USB port has come off cleanly from a circuit board. I need to bring this to you and have you do the work. I don’t really want to post away if I can help it.

I need to develop pressure sensor based coding for ESP32 mcu. Here, I am planning to use US9111 pressure sensor with mcp3421 ADC converter. I want to measure +5PSI to -5PSI pressure value, with auto zero calibration. When there will no pressure on the pressure sensor that must be zero value at the initial condition. It should be strictly maintain. It can be set by auto zero calibration. I want to measure pressure precisely, so you need to do the coding with exact calculation.

I need to make mini geared stepper motor do one 360° turn Need to have screen showing timer and be able to adjust time in minutes example : Do one turn every 5 minutes

I need someone that has knowledge of this, to draw a graph from serial input which will be from an ADC on the MCU and given to the communication port via RS232. I should be able to save this as a CSV file and open it later in excel and the software itself. Software must be able to give me pane view and compress view. Deliverable is source code project file.

We need to build a circuit to read the rfid card as per the attached requirement document.

arduino HW & SW mega e wifi good developer

We look for an implementation of Art-Net 4 and RDM based on our implementation of DMX. We are using a Cortex-M 4 MCU (Artery AT32F-415 RCT6 MCU) The AT32F415 Series Reference Manual V1.04 can be found here: The implementation should be as hardware independent as possible, therefore the implementation of Art-Net is planned on the cortex-M 4 MCU and the UDP data from the ESP module is being transmitted using throughpass and SPI link. This is the specification of RDM: You can use various open source implementations for our implementation. This is an example for a RDM implementation: Similar for ArtNet: An implementation of DMX is being provided. Design and Implementation Constraints The software should be programmed in Standard C. The IAR extensio...

We are looking for a long-term agent with knowledge regarding small electronics systems and projects of varying size based on single-board computers (SBC) and other small circuit board solutions. Our prototypes and devices include touch screens of varying sizes, single-board computers (Raspberry Pi, Libre Computer, Arduino), Large capacity batteries and other small circuit boards and components as well as circuit switches. The expertise we require relates to designing and building an working prototype for the company. By using the aforementioned parts in order to make. For example. A portable gaming platform powered by single-board computer (SBC) ie. Raspberry Pi, a chargeable large capacity battery, buttons and touch screen. Expertise regarding the operating system (bootloader in parti...

we have an heat meter for hot water unit is connected to the pc. we need to arrange the data in scada and to pull more diff. data point from the meter. to show it in real time on the pc

To develop a embedded c code for getting data from 8 ADC channels of stm32f103c8t6 controller and transfer the acquired adc data over modbus rtu / rs485.

The IoT Base Data Logger project aims to design and develop a device that will allow for the efficient collection, storage, and transmission of data from the Quectel MC60 module to a cloud-based platform. This device will utilize UART for data reception and an SD card for data storage. The device will also feature a real-time clock (RTC) interface for accurate timekeeping and scheduling of data uploads to the cloud.

Hi all, I need to write data from an RS485 device to a Webserver through the device Usriot TCP232-410s. I have a RS485 sensor connected to this device, and I want to write data in a database in my server. Is important to know how the device works:

The scope of work is in the attachment. A few things we need equal run time on the 3 Chillers. For example Chiller 1 runs 80% of the time Chiller 2 runs 15% of the time Chiller 3 runs 5% of the time We would like the chillers to switch from chiller 1, 2, 3 cycle operations to 2, 3 ,1 cycle to a 3, 2, 1 cycle in operation then back to 1, 2, 3 cycle. We need a similar situation with the Supply Pump and Backup Pump equal run time like the chillers We need a similar situation with the Circ. Pump and Backup Circ. Pump equal run time like the chillers As for the auto switch over for the Circ. Pump to Backup and Supply Pump to Backup is a case of failure on the main pump this is controlled by a pressure switch on mai...

WE NEED WEIGHING SCALE PCB BASED ON 24 BIT 1232 ADC AND HX710 with 8 BIT MICROCONTROLLER 1.ADC- HX 710A AND 1232 2.MICROCONTROLLER- ANY ONE Easy Available and IN PRICE 7 SEGMENT 7 DIGIT COMMON ANODE DRIVER .

Looking for knowledgable guy to help with 1mA current source circuit

An automatic Braking system is an intelligent mechatronic system includes an Ultrasonic wave emitter provided on the front portion of a car producing and emitting Ultrasonic waves. An Ultrasonic receiver is also placed on the front portion of the car operatively receiving a reflective Ultrasonic wave signal. The reflected wave (detected pulse) gives the distance between the obstacle and the vehicle. Then a microcontroller is used to control the speed of the vehicle based on the detection pulse information to push the brake pedal and apply brake to the car stupendously for safety purpose.

I a close focal point camera (50mm) with Bluetooth that will be set ready to go when power (12v) is supplied and transmit vision via Bluetoothed to a device. I would like this unit to have a GPS which will transmit when vehicle is in motion. The unit will be installed in a camper van and used for set-up.

I need to build a prototype with Arduino Nano of a multiple video night vision and pir sensors transmitting to a receiver with a High definition small touch screen when the sensor is triggered and I can switch from the receiver the view of the single camera I want. The project should include the code for the transmitter and the one for the receiver and the stl file for the 3D printing of the trasmetter and the receiver containers. The transmitter container should be as small as possible, considering it needs to support a small battery and transmit to long distance with the best quality as possible. Mini usb rechargeable and mini solar panel included to recharge. The receiver should be as thin as possible and it should have a thin battery both transmitter and receiver batteries should be...

We are an Access Control manufacturer and we are looking for developers/freelancers/consultants that can help us build our new DESFire EV2 reader. Our hardware is based on ST MCU and we will connect it to an NXP SAM. We less need assistance in hardware design but more in understanding deeply the protocol and the way to use it, and also in defining the requirements for such a product.

IoT project. Need early-stage design and development.

require to route a pcb with component placement in easy eda

We need a PCB Designer to help me to develop the project together. Our talented team is our greatest asset. We provide opportunity, reward performance, and support a positive and balanced work environment. Work from home.

Responsibilities and Duties: Integrate and validate new product designs Creating engineering or technical drawings as per the specifications provided Prototypes bring-up, testing and debugging Executes component- and system-level simulations Design and implementation of electronics hardware (PCB) Design, develop, implement, test and debug microcontroller / microprocessor-based hardware proto testing code implementation. making calculations of product dimensions, drawing sketches of product ideas, and designing mockups of proposed products. Develop and complete projects Sourcing of raw materials. Purchase electronics device and equipments depending upon project needs Troubleshooting embedded systems and diagnosing errors, malfunctions, or inefficiencies firmware drivers for hardware periph...

I need someone to help write software for a small digital device with very simple functions display and sound. The device would have 5 buttons and a small digital black and white screen, and small audio speaker. Thank you!

I need to send the data to the firebase database through NB-IoT in the Beaglebone. This is very urgent. The candidator must have experience about SIM7080G breakout board and Firebase.

I have a couple of holiday homes with an airco (LG s12et) and a NILAN compact P heat pump. Both systems can hear or cool the house but at this moment a lot of times the systems are working against each other because the temperature that is wished, is not synchronising. Maybe this can be done with modbus or something. The project is: -selecting the right hardware -maybe write some programming language -With the right instructions I can connect the hardware myself easily. I have attached the NILAN specifications. The LG airco specifics are easy to find online.

I am doing a small project to measure the movement of an object, I am thinking of using an image sensor, a ToF or even a LIDAR sensor, although I accept suggestions and new ideas.

I need an electrical engineer who is good at doing the programming part

Hi, We want to make a heart rate monitor for horses , this project should require experience in electronics and pcbs where the the freelance is expected to show in his proposal what ICs he will work with, mentioning the exact model, and what time of microcontroller or microprocessor he will use, Thanks

I want help for my arduino project , i am mechatronics student and i need to finish my last semester.

Arduino code for machine using 5 ultrasonic and 5 servo motor and lcd screen and keypas

There’s some things I didn’t specify in this drawing. The esp8266 has 15 pins on both sides, The lcd adapter has 4 pins to the left and 16 pins at the bottom. Then I’ll need another 16 pin vertical female header for the lcd screen (pin 1 from the adapter would need a trace going to pin 1 on the lcd adapter board, 2 with 2, etc.) As for the components I’ll just need holes so I can solder them. I’ll just need it printed as for which hole is which. [Removed by Freelancer.com Admin]

This project is based on the save power concept, in bathrooms, we turn on lights and forget to turn them off which leads to power wastage .to tackle this problem we need to set the delay to lights to means after 7 -10 min of turning on the light it will automatically turn off, need to design a circuit to solve this problem

Looking for Arduino, Rasperry PI code, bootloader experienced engineer

Need software developer can work rfid impinj

Hi. I need to get a Raspberry device to set it up for my car. Can you supply me with the device and its setting. It's the best thing for me. I give you the link below where everything is well documented. Apparently it's easy but I'm useless in IT. Thanks for your feedback. The person need to be in London for delivery nd setting. Hassane - Due date: Flexible