Microchip RTC Firmware Project

Write firmware (C code) to initialize and set up battery backed up RTC. Then prove out the code on a provided demo board. I will mail the board to you.

Demo board will have:

• dsPIC (DSPIC33FJ16MC102 Microcontroller IC 16-Bit 16 MIPs 16KB (16K x 8) FLASH 28-SOIC)

• RTC (MCP7940N)


• Coin cell holder and cell

• 3 LEDs

• Pic programming port

• 9V battery that can be disconnected

• 9V to [url removed, login to view] regulator

Circuit will be provided that has all hardware. Schematics and layout will be provided (Altium). Powered by 9V battery. Backed up by a coin cell. If you need a PICKIT3 programmer I will send you one.

I will provide proto board with pic, batteries, RTC etc.

Program must be written in “C” and do the following:

Initialize the RTC

Contain comments clearly explaining code operation

Use MPlabx and xc16 compiler (downloadable for free)

Light a Red LED for the first 5 seconds of each minute, then off for 55 minutes.

Light a Blue LED for 18 hours a day every day. Off for 6 hours a day.

Light a green LED on for 1 day, then off for 1 day. On time will be from noon to 2PM

Light a white LED for the first 15 seconds of each minute, then off for 45 seconds. Must operate with 9V battery being disconnected a couple times during the 5 second on time (prove battery backup operation of coin cell).

Please let me know your desired deposit amount and final payment amount after working proto is delivered back to me along with documented source code.

Evner: C programmering

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Om arbejdsgiveren:
( 2 bedømmelser ) POMPANO BEACH, United States

Projekt ID: #14095354

Tildelt til:


I have a dsPIC33F128GP804 based board that I can modify code from, using the HW you supply. I have FreeRTOS with I2C drivers for this (they are EEPROM, but easy to update for RTC instead.) Drivers do not need RTOS Flere

$250 USD in 5 dage
(1 bedømmelse)

5 freelancere byder i gennemsnit $235 på dette job


Hello Dear, I am an expert with more than 15 years of experience in the field of embedded systems, electronics, prototyping, Programming and PCB layout. I have worked on 8-bit, 16-bit and 32-bit architectures dev Flere

$250 USD in 10 dage
(9 bedømmelser)

Hi, I have microcontroller from dsPIC33 series, only RTC I don't have(i can arrange). Please let me know your project timeline. About us: Micro-controllers we have worked on PIC, STM32, PSOC and AVR. Developm Flere

$277 USD in 7 dage
(3 bedømmelser)

Hi! Im an electrical and electronic masters graduate of UWE currently working as an electrical engineer in a reputed company. Good in AUTOCAD and AUTOCAD MEP. I have the experience of programming in C/C++/Assembly/Ard Flere

$250 USD in 10 dage
(10 bedømmelser)

Hello, how are you? I hope you have a bright day/evening from your side. I have read the details provided, but please contact me so that we can discuss more on the project. I believe I have the required skills in this Flere

$147 USD in 3 dage
(2 bedømmelser)