Search found 5 matches

by rfclarke
Sat Jan 31, 2015 10:52 am
Forum: Nuts & Volts Magazine Discussions
Topic: Build a PIC-Based Remote Temp Sensor
Replies: 14
Views: 32654

Re: Build a PIC-Based Remote Temp Sensor

Nice article. I'm currently working my way through the project. So far I have only implemented the transmitter portion of the circuit, but I believe there is a problem with the checksum calculation. When you watch the data sent from the transmitter with a logic analyzer, the checksum never changes,...
by rfclarke
Tue Jan 28, 2014 12:51 pm
Forum: Nuts & Volts Magazine Discussions
Topic: Build a PIC-Based Remote Temp Sensor
Replies: 14
Views: 32654

Re: Build a PIC-Based Remote Temp Sensor

Mr. Clarke, Appreciate your reply. Understand the preamble is to drive the gain down. However, when I look at the Arduino code: while(rfSerial.available() < 4); address = rfSerial.read(); high_byte = rfSerial.read(); low_byte = rfSerial.read(); checksum = rfSerial.read(); The Arduino is waiting unt...
by rfclarke
Sat Jan 25, 2014 12:45 pm
Forum: Nuts & Volts Magazine Discussions
Topic: Build a PIC-Based Remote Temp Sensor
Replies: 14
Views: 32654

Re: Build a PIC-Based Remote Temp Sensor

PatrickG wrote:Does anyone have any suggestions?
Have you resolved your issue? I would be happy to help. As someone else has stated, may be a configuration issue. Let me know.

Ryan Clarke
by rfclarke
Sat Jan 25, 2014 12:44 pm
Forum: Nuts & Volts Magazine Discussions
Topic: Build a PIC-Based Remote Temp Sensor
Replies: 14
Views: 32654

Re: Build a PIC-Based Remote Temp Sensor

I too built this project and have not seen success (yet). Putting a scope on the RF transmitter shows the PIC sending out the correct set of bytes (I went down to two seconds on the watchdog timer for debug). Those are received at the RF receiver, plus a lot of other 433 MHz traffic. One thing I am...
by rfclarke
Sat Jan 25, 2014 12:38 pm
Forum: Nuts & Volts Magazine Discussions
Topic: Build a PIC-Based Remote Temp Sensor
Replies: 14
Views: 32654

Re: Build a PIC-Based Remote Temp Sensor

elproducts wrote:This is a great article but I wonder why he didn't just use a CHIPINO module instead of Arduino?
He could then use the XC8 compiler for both the 8 pin PIC and the Receiving module.
Because I didn't have a CHIPINO :grin:

Ryan Clarke