MODbus/RTU on a PIC Microcontroller

By request one of my long lost blogs was a MODbus RTU application for a PIC 18F27J53. You could easily plop this onto many of the 18F series micros. It doesn’t do much but it’s a great stepping stone for throwing in your own IO. I’ll probably follow up with an Arduino version in a…

Code and Documents

All related files I’ve uploaded (as of 2014) and code: I have found I never update this…. you’ll have to look inline with the articles. I tag fairly well anyhow. CODE: Right click and Save As… Files with potential updates can be found at github:¬†https://github.com/chasxmd and NOT here. My other github is https://github.com/chasihler/ All files…

WWVB Time Signal Generator Test w/ HEX

[Edit: I’ve added the .asm code in the “Code” page in the menu above. Below you can find the .HEX file for easy programming] A successful test on my WWVB signal generator. I’m going to shy away from calling it a transmitter because I don’t think there is any allowances for any broadcasting on 60KHz,…

PWM on the PIC16F1509 in ASM

[Edit: If you’re looking for NCO (numerically controlled oscillator) usage instead of the PWM module take a look here instead. However note the code is in C (for XC8) not ASM] Another lazy Sunday… A lot of OT the last few weeks at work and Sunday about the only day I have for relaxation so…

TAUTIC’s 20 Pin Development Kit

I am a sucker for development kits/boards; they are cheap and if you have the room in your project they shave tons of room off your development time. Semi-recently, I was looking for a 18 or 20 PIC development board to plug into a main board. There are tons of boards that have various relays…

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