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Tag: IR

Pager-Controlled Thermostat Teardown (Work in Progress)

Pager-Controlled Thermostat Teardown (Work in Progress)

After installing a new furnace and thermostat, I was left with an old thermostat that was controllable by the power company to allow them to shut off theĀ A/C remotely during high-load time, and allows users access to set their thermostat online

The Cannon Technologies Inc “ExpressStat” board (Rev M) has:

  • a Renesas H8/3937 non-roaming FLEX decoder, with on-chip 60-kbyte ROM and 2-kbyte RAM,
  • a Ramtron FM24CL64 “F-RAM array” (similar to an EEPROM),
  • an Infrared TX/RX pair,
  • a Texas Instruments TIR1000
  • a pager sub-board, including pager motor and beeper/buzzer, antenna and receiver circuitry
  • an 8-pin header to the thermostat’s mainboard

Attachments: Stuff: Arduino Shield, Breadboarding Supplies, etc Stuff: Arduino Shield, Breadboarding Supplies, etc

My latest order.

For PIC programming:
BOB-00193 (1): Adapter board for Microchip ICD and ICD2

For (hopefully) adding some IR functionality to my QuahogCon badge:
COM-09349 (4): Infrared LED – 950nm

For parts:
DEV-00348 (2): Olimex Carrier Board for OKI ML67Q5003

For prototyping on the Arduino (and otherwise generic prototyping):
DEV-07914 (1): Arduino ProtoShield Kit
PRT-07915 (1): Breadboard Mini Self-Adhesive (For Protoshield Kit)
PRT-09567 (1) : Breadboard Clear Self-Adhesive (For other breadboarding)
PRT-00124 (1): Jumper Wire Kit
PRT-08430 (1): Jumper Wires Premium 6″ F/F Pack of 10
PRT-08431 (1): Jumper Wires Premium 6″ M/M Pack of 10
PRT-09140 (1): Jumper Wires Premium 6″ M/F Pack of 10