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--- wiki:projects:hardware:hvac:devblog [2010/04/08 23:50] – jeff
+++ wiki:projects:hardware:hvac:devblog [2020/11/19 14:21] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
 ====== HVAC Thermostat Dev Blog ======
+===== March 12, 2015 =====
+  * [[https://github.com/andygock/avr-uart/blob/master/uart.c]]
+===== February 10, 2015 =====
+  * [[http://www.inmojo.com/store/inmojo-market/item/digital-ac-dimmer-module/|AC Dimmer circuit]]
+===== December 8, 2014 =====
+Been working on getting a wifi sensor setup and configured.  Got the ALS setup pretty simply, just reading an analog value.  Then started work on the BMP180 sensor.  Had to write the i2c class interface and then re-writing most of someone else's implementation of a BMP180 class.  Using the docs for the bmp180, it took some doing to get it right, but it's now working.  Some of the issues were getting the right combination of i2c commands, start/stop/restart, working then the other issue was with the pressure value being to big for the data type they were using.  So now the barometric pressure and ALS work, so does the DHT22.  I need to do some work on making the DHT22 more accurate, using a kalman filter or just a simple average.
 ===== January 6, 2010 =====

wiki/projects/hardware/hvac/devblog.1270770648.txt.gz · Last modified: 2020/11/19 14:21 (external edit)

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