Did you order that 4-port USB hub because it was almost free but now it’s just sitting in your junk box? Why not turn it into an In System Programmer for AVR chips? [Paul] came up with HUB ISP as an ...

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 ...

the USB-ICP-LPC2K in circuit programmer now supports NXP’s ARM Cortex-M0 processor-based LPC1100 series and the Cortex-M3 processor-based LPC1300, LPC1700 families. In an updated version, the ...

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 ...

[Steve] created an AVR programmer using an old USB keyboard. We feature a bunch of AVR programmers, but this one is made from parts that many people will have lying around. There are two components: ...

Not just for nerds, anyone with an interest in electronics, computers, or engineering can build a circuit to blink an LED or read a temperature sensor. The NerdKit will walk you through building the ...

These USB programming cards—one available for each meter—provide users with an efficient, cost-effective way to connect CUB5 and PAX meters to almost any computer, with no serial converters or other ...