PiR2 Devices by D@CC

The author has designed many versions of the PiR2 temperature controller.
He has actually built most of them and has written software for them.

They are:

PiR2A    Initial Prototype (built on a small board)  See Article 139
              pir2_CheckUp_C_py.txt test program for the PiR2A.
	 The URL of the schematic drawing is at the end of this page. 
PiR2A2
PiR2B    (built on the Grove Base hat.) See Article 146/GroveF.pdf
PiR2B2   (Built on the Adafruit 4132.)  See Article 147
PiR2C    (discontinued) See Article 146
PiR2D    (built on the Weather Hat Pro.) See Article 146 and 190
PiR2D3   PiR2D3_K  (built on the Weather Hat Pro.) See Article 146
PiR2E    See Article 146/GroveF.pdf and 167
PiR2F    ?
PiR2Null See article 153 PiR2Null Area Controller (works on Pi or Pico)
PiR2P    See the PiR2WDrawA02.odg wiring diagram in Article 191
PiR2PAda See Article 191
PiR2Pico See Article 161 describing the use of the Pico as PiR2 sensor
PiR2T    Near-By Area Thermometer. (No prototype yet) See Article 153.
PiR2W    (built using the Wio Terminal & a protoboard) See Article 191.
             See wiring diagram PiR2WDrawA02.jpg in Article 191
PiR2WL 
PiR2Z    "Too Hot" alarm (161.html) uses the Pico and Pi Zero W
               Schematic in Article 161
PiR2Z_F  The PiR2 based on the Pi Zero W & the TMP102 IC (deprecated)
PiR2Z_H  The PiR2 (Fridge Too Hot) based on the Pi Zero W & the 
              TMP102 IC with CDS and Red, Yellow and Green LEDs

PiR2DrawK12  A schematic drawing of the original PiR2A can be found
	 at https://ephotocaption.com/a/139/PiR2DrawK12.jpg

by D@CC on 2024HAug16
revised on 2024ISep16

/PiR2_Devices.txt