It is time to get the atMega MCU to actually do something useful. In particular, I want it to activate a really to turn on a heater–but first I’ll experiment with a lamp. The point here is to control the temperature in my hothouse (even though the low quality thermostat on the Walmart heater already killed all of this year’s…
-
-
Talking to the atMega from the Pi over Bluetooth BLE
Past posts have built an atMega328p nano board with bluetooth BLE and a DHT22 sensor, and also a quick peek at Python on a Raspberry Pi 0w. Now it’s time to combine them. Make sure your Pi is up to date if you haven’t already: sudo apt-get upgradesudo apt-get dist-upgrade And make sure that you have the bluez libraries and…
-
Getting the atMega to Talk to an AT-09
First steps in talking to an AT-09 bluetooth device with an atMega MCU
-
A Simple ATmega Circuit . . .
Simple, of course, is a category of “Famous Last Words” . . . Some months ago, I got frustrated with yet another commercial lawn sprinkler controller having gone out, and started my web research. This was not a cheap model, but rather almost $100 from a major brand name. I had three front yard lawn circuits, one back yard, and three…