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env setup megaTinyCore
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https://www.electrodragon.com/product/vac-current-sensing-module-0-5a-ct-sensor/
pin definitions
main function
- Current sensor = 9
- Input voltage sensor = 10
- relay = PA4 D0
genernal usage
- Buttons = 8
- led = PA5 D1 1
- UPDI = PA0
PA1 = 8 = BTN PA2 = 9 = CS PA3 = 10 = VS
OLED
- PB0 - SCL
- PB1 - SDA
UART
- PB3 = RXD
- PB2 = TXD
define in arduino
#define relay 1 #define led 0