Originally Posted by clay9_24
tell me more about this microcontroller board you mentioned. I am trying to get away from allen bradley equipment and move to cheap computers and java.
For this project I decided to try out a newer development kit that uses an Arm Cortex-M3 32bit mcu
. I purchased the LPC1768 version
for around $25. Shortly after the purchase NXP had a contest and a survey to fill out which netted me two free LPC1114 Cortex-M0 boards
Might use one of those for a keezer/fermentation temp controller. These are overkill for what I need them to do but it is always fun to learn something new.
The demo board has two halves, the first is a JTAG debugger/programmer the second is the "target" or microcontroller. It is programmed in C with all the software needed to create basic programs included.
I will be creating my own base circuit board that the LPCXpresso board will mount to inside my HMI. The base board will break out any peripherals or signals I need and mate them to proper connectors.
I already have the code in place for three channel PWM control of my SSRs after reading in a value from the front panel potentiometers while in manual or hand mode. Last week I finally got the 1-wire master code working so I can read in temperatures from my DS18B20
digital temp sensors. Still a lot more work to be done with this.