AVR prog for heater controller

I have a project that I need help on. It's an on-demand heater controller, hopefully using an Adafruit AVR Pro Trinket or Arduino Pro Mini 328 (or similar small/cheap) dev board. Project info: 1) Circuit/code is bare bones: needs to read a 2-wire 56Kohm thermistor (have temp chart for the thermistor), output controls a single SSR (3v-32v input), no display needed. 2) 12vdc available and will add small dc/dc reg to drop voltage to power the controller. 3) GPIO output to control SSR (if nec, could run GPIO signal through very small mechanical relay): output high at or below low-setpoint, output low at or above high-setpoint. (we will also want a reverse function toggle in code, for future use). 4) Need top level code variables for easy adjustments to settings, including high-set-point (default 95C), and low-set-point (default 93C). No external buttons or other controls, all adjustments will be in the code (once we get it dialed, it will stay that way indefinitely). 5) would like to flash via OTS programmer dongle. I've got Atmel Studio and an AVRISPmkII, but could easily pick up USB or something else if needed. 6) the device must retain last setting/code between power cycles, must boot quickly. 7) function: apply 3V (or 5V) power to controller, controller boots and begins temp control routine, power off controller (there are other analog circuits that control everything else, including fail-safe issues). WE DO HAVE A SMALL BUDGET TO GET THIS DONE. The dollar amount posted is not a max. Qualified individuals please apply. Thank you!

Skills: Arduino, Electronics, Programming

See more: temperature controller using atmega16, intelligent temperature monitoring and control system using avr microcontroller, lm35 interfacing with atmega32, lm35 interfacing with atmega16, temperature sensor using atmega8, temperature controller using atmega32, temperature measurement using lm35 and avr microcontroller, avr code xbox controller, arduino heater controller, arduino water heater controller, avr atmega joystick controller, xbox 360 usb controller avr, avr xbox 360 controller, usb host controller avr, xbox 360 controller avr usb, avr usb host controller, avr host usb controller, usb dongle programmer, heater controller, codevision avr pwm motor controller

About the Employer:
( 0 reviews ) United States

Project ID: #16897291

Awarded to:


I have long experience with 8-bit and 32-bit micro-controllers. I work with PIC , AVR , ST and NXP micro-controllers. I use KEIL IDE , Atmel Studio and MPLABX IDE . I deliver tested , neat and well-commented code th More

$55 USD in 3 days
(5 Reviews)

2 freelancers are bidding on average $128 for this job


Hello I'm a controls engineer with tons of experience and can do the job Please contact me to discuss the project. Best regards, Dennis

$200 USD in 3 days
(2 Reviews)