Today's tiny project was to add a display for the temperature and humidity instead of printing it to the console. I added another toy from the recent buy - a 1.3" OLED display.
I'm using the robert-hh SH1106 driver. Too lazy to write one for now.
The display's i2c address is $3c, so it works...
Universal-Solder had a year end sale. Couldn't resist grabbing a small pile of toys. One of the devices I bought was an Asair AHT21B temperature and humidity sensor. Asair says, "AHT21 is equipped with a newly designed ASIC dedicated chip, an improved MEMS semiconductor capacitive humidity sensor e...
On my last post I had barely scratched the surface of what the LP55231 could do and was reading about the three program execution engines. After a bit of research I found that TI supplies a dashboard program and an assembler for the chip, but only for their own LP55231SQEVM evaluation board.
The...
I bought a Sparkfun BOB-13884 LP55231 breakout board as filler on a recent Digikey order. The LP55231 is quite an interesting chip. It drives only 9 LEDs, but has a pile of capabilities. And with the onboard charge pump it does it all on low power and very efficiently. Way too much to type, so her...
Most microcontrollers these days are 3.3 volt. I've been using plain old cheap 5 volt 1602 LCDs forever, but I got tired of always having to set up dual voltage to my breadboards. 1602 LCDs work fine with 3.3V signals, but the backlights are dim and the LCD is sort of faded at 3.3V. I know you can a...