| 10-Pin ISP Header | ||
|---|---|---|
| Pin | Name | Description |
| 1 | MOSI | Master Out Slave In |
| 2 | VCC | Target Power Supply |
| 3 | NC | Not Connected |
| 4 | GND | Ground |
| 5 | RST | Reset |
| 6 | GND | Ground |
| 7 | SCK | Serial Clock |
| 8 | GND | Ground |
| 9 | MISO | Master In Slave Out |
| 10 | GND | Ground |
| 6-Pin ISP Header | ||
|---|---|---|
| Pin | Name | Description |
| 1 | MISO | Master In Slave Out |
| 2 | VCC | Target Power Supply |
| 3 | SCK | Serial Clock |
| 4 | MOSI | Master Out Slave In |
| 5 | RST | Reset |
| 6 | GND | Ground |
AVR ISP (In-System Programming) is a method used to program AVR microcontrollers. The ISP connector allows you to program the microcontroller while it's installed in the target system, eliminating the need to remove the chip for programming.
The pinout shown here is compatible with most AVR programmers like:
Note: Always check the polarity and pin assignments before connecting any programmer to your circuit to avoid damage.