Projekt IoT
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IoT - Internet of Things
some project ideas and notes regarding Arduino, ESP8266, ESP32 and other micro controllers
- Arduino Nano with 433 MHz data transfer
- ESP-01 for shutter control
- ESP-12 for LED switch
- ESP-12 for laundry room air control
- SonOff with own firmware and tasmota devices
https://github.com/arendst/Sonoff-Tasmota/wiki
Arduino IDE Inofficial Boards
look here for an overview:
ATTiny
Most ATTinys: https://github.com/SpenceKonde/ATTinyCore
- Datasheet 2313: http://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-2543-AVR-ATtiny2313_Datasheet.pdf
- Datasheet 2313 Summary: http://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-2543-AVR-ATtiny2313_Summary.pdf
- Pinout 2313: https://github.com/SpenceKonde/ATTinyCore/blob/master/avr/extras/Pinout_x313.jpg
Wiring
- Vcc can also be 3.3V
- C1 can have bigger capacity for unstable voltage
- R1 can be higher values
Programmer
I have an USBasp. Program with avrdude. Works integrated in Arduino IDE. Ignore warning "avrdude: warning: cannot set sck period. please check for usbasp firmware update.".
Numbering of Connector is
1 3 5 7 9 2 4 6 8 10
Need to connect Vcc, Gnd, Miso(1), Mosi, Reset and Sck
New chip needed 0.5MHz for correct timing with delay()
Needed this in file /etc/udev/rules.d/50-USBasp.rules
SUBSYSTEMS=="usb", ATTRS{idVendor}=="16c0", ATTRS{idProduct}=="05dc", GROUP="dialout", MODE="0660"