An Arduino multimeter watch
- Displays voltage between 0 and 30v
- Displays current upto 500mA
- Zener clamp and 500mA PTC to protect Arduino
- ATMEGA328P with Arduino boot-loader
- 3.3V operation with CR2032 battery
- 32.768kHz crystal
- Mini 7 segment display
- 2x side buttons for menu operation
- FTDI programming port
- Low power operation
You will need to set various fuses when you upload the bootloader, thse can be done with this command
avrdude -b 19200 -c usbtiny -p m328p -v -e -U lfuse:w:0xe2:m -U hfuse:w:0xda:m -U efuse:w:0x07:m
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Designed by Richard Hawthorn
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