This simple circuit can be used to program the PIC16F84 and similar “flash memory” type parts. It uses a cheap 555 timer IC to generate the programming voltage from a +5V rail, allowing the circuit to ...
A handy tool to have on the bench is a Flash chip programmer, and the ones based around the CH341A USB bus converter chip are readily available. But the chip is capable of so much more than simply ...
The circuit of AVR In-System-Programmer (ISP) has been modified to function with USB connection to a PC. The modification of the old AVR ISP includes the replacement of two transistors which will be ...
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