. The programmer expansion board is a programmer expansion board that allows your board to modify fuse bits, burn-in bootstrap program to external chips and other boards
2. On-board buzzer, if the fuse position is changed successfully, it will emit a sound, and then it will make a sound again if the boot loader is burned properly.If it’s not two beeps, the burning fails.You can listen to sounds instead of looking at LEDs, so
3. On board FT232RL and CH340G USB to TTL programmer interface, used to upload code to chip on 28P lock seat
4. On board LED indicator light, LEDs light up like breathing lights when they are normally energized. During programming, the PROG indicator light flashes until it is complete. If the program fails, the ERROR indicator light (red) will be on
5. Please feel free to contact us if you have any questions after received our products, we will try our best to solve your problem
Specification:
Item Type: Programmer expansion board
Operating Voltage: 5V
Working Current: 500mA (maximum)
Package List:
1 x Programmer Expansion Board