March 26th, 2008
PIC16F84A temperature controller with LCD
The module uses an inexpensive 8 bit Temperature Sensor the TMP37 from Analog Devices.Since the data was analog and the PIC16f84 does not have an analog input,an external ADC had to be used.Texas Instruments’ TLC549 was chosen for this.The advantage of this ADC was that it could communicate with the microcontroller serially.You may also use similar ADCs from Maxim-IC.The LCD is a normal 16×2 display which uses the Hitachi Controller HD44780.
PIC16F84A temperature controller: [Link]
April 6th, 2009 at 2:33 am
Link has now changed to
http://www.machinegrid.com/2008/12/pic16484a-temperature-controller/
Since I had to do an upgrade. Thanks for visiting.
April 6th, 2009 at 8:34 am
Thanks, I’ve updated the link