Open interface III
This revision is from 2016/12/09 10:03. You can Restore it.
ATMEGA2560 pinout
| Arduino pins | connect to | in/out | Note |
| RX0 | USB | in | cw keyer |
| TX0 | USB | out | or firmware upload |
| D2 | paddle Left | in | pull-up external, Interrupt 0 |
| D3 | LCD-E | out | Interrupt 1 |
| D4 | CW tone | out | |
| D5 | paddle Right | in | pull-up external |
| D6 | LCD-D4 | out | |
| D7 | LCD-D5 | out | |
| D8 | LCD-D6 | out | |
| D9 | LCD-D7 | out | |
| D10 | Ethernet SCS | out | |
| D11 | CW1 | out | |
| D12 | CW2 | out | |
| D13 | PTT1 | out | |
| TX3 | ACC pin3 | out | |
| RX3 | ACC pin2 | in | |
| TX2 | CAT | out | sniff or |
| RX2 | CAT | in | request |
| TX1 | Internal conn | out | Interrupt 5 |
| RX1 | Internal conn | in | Interrupt 4 |
| D20 | PTT foot | in | pull-up external, Interrupt 3 |
| D21 | Interlock | in | pull-up external, Interrupt 2 |
| D22 | PTT2 | out | |
| D23 | Encoder-B | in | pull-up internal |
| D24 | Encoder-A | in | pull-up internal |
| D25 | PTT3 | out | |
| D26 | ACC pin7 | ||
| D27 | WinKey | out | |
| D28 | ACC pin8 | ||
| D29 | AFSK | out | |
| D30 | ACC pin9 | ||
| D31 | PTT-PA | out | |
| D32 | ACC pin10 | ||
| D33 | FSK detector | in | pull-up external |
| D34 | ACC pin11 | ||
| D35 | ACC pin12 | ||
| D36 | MENU | in | pull-up external |
| D37 | PTT-232 | in | pull-up external |
| D38 | ACC pin13 | ||
| D39 | self reset | out | |
| D40 | Sequencer | out | |
| D41 | FSK | out | keying from arduino |
| D42 | BCD1 | out | |
| D43 | BCD2 | out | |
| D44 | BCD3 | out | |
| D45 | BCD4 | out | |
| D46 | - | BUG - must be LOW | |
| D47 | ACC pin6 | ||
| D48 | ACC pin5 | ||
| D49 | ACC pin4 | ||
| D50 | MISO | out | |
| D51 | MOSI | out | |
| D52 | SCK | out | |
| D53 | microSD CS | out | |
| A0 | - | ||
| A1 | Memory button | in | pull-up external |
| A2 | LCD-RS | out | |
| A3 | ACC pin14 | ||
| A4 | ACC pin15 | ||
| A5 | microSD plug | in | pull-up internal |
| A6 | measure 3.3V | in | |
| A7 | measure input voltage | in | up to 38V DC |
| A8 | ACC pin16 | ||
| A9 | ACC pin17 | ||
| A10 | ACC pin18 | ||
| A11 | ACC pin19 | ||
| A12 | - | ||
| A13 | - | ||
| A14 | - | ||
| A15 | - |