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I have a board (actually - many of them) with ATmega48PA (TQFP32) soldered in and no ISP connector. Some of the ISP lines are even not routed.

I used Hobbyking programmer to connect to the processor in the past:

enter image description here

I have had two of them. And I felt my self comfortable with it. However I broke one today and find out that it is not possible to order this connector again.

Now I desperately need any solution which could help me. Processors are already soldered on the boards and it will be a nightmare if I will need to unsolder and flash it separately.

Is there any ideas?

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  • \$\begingroup\$ Fix the broken programmer or make a new one. Looks like a piece of plastic and some Pogo pins, maybe P50's. Probably not something you can reliably crank out on a hobby 3d printer but with hand fitting you probably can make one that will work for a while. Or solder right to the pins if you only need to do a few. \$\endgroup\$
    – Chris Stratton
    Commented Feb 15, 2019 at 18:09

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micro grabber test clips enter image description here

Micro grabber clips have come in handy for me a few times. Attaching them will be slower than using a fixture, but certainly easier than unsoldering parts. They're fragile so you might want to buy a few extra.

Here's one source: https://www.newark.com/pomona/72902-2/test-clip-1position/dp/74K0031

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  • \$\begingroup\$ Those are 20+ USD apiece. Not really hobbyist territory. \$\endgroup\$
    – Sixtyfive
    Commented Apr 23, 2022 at 23:10

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