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- iWRAP
- -----
- +---------------+ WT12
- 5V | ATmega168 | 5V/3.3V~~~~
- +-----+---|Vcc,AVCC PC4|---/--->iWRAP(RxD)
- USB | C3 | PC5|<--/----iWRAP(TxD)
- ~~~ | + | |
- 5V <--BATT + GND | | HHKB
- R1 | | ~~~~
- D- <----+-----+--R2-----|INT1 PB2-4|------->ROW(6-8)
- D+ <----|---+----R3-----|INT0 PC0-2|------->COL(9-11)
- Z1 Z2 | PC3|------->ENABLE(12)
- GND<----+---+-----------|GND PB0|<-------KEY(4)
- | PB1|------->PREV(5)
- | |
- GND+-C2--+--|XTAL1 RXD|------->Debug Console
- X1 | TXD|<-------Debug Console
- GND+-C3--+--|XTAL2 RST|---SW--+GND
- +---------------+
-
- R1: 1.5K Ohm
- R2,R3: 68 Ohm
- Z1,Z2: Zener 3.6V
- C1,C2: 22pF
- C3: 0.1uF
- X1: Crystal 12MHz
- SW: Push Switch(Optional)
- BATT: Li-Po Battery, Battery Charger and Voltage Regulator(5V and 3.3V).
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