| Products > Test Equipment |
| finding short on motherboards with a shorty (with display) |
| << < (18/37) > >> |
| kripton2035:
very nice and compact design, I like it ! |
| nikifena:
Nice PCB. Just wondering what is the function of the signal going to PA2 since there is a 18bit ADC there? |
| jdobry:
I am using both ADCs. External in 16bit mode to get 15 SPS in Continuous Conversion option. It is fine for the high precisison measurement, but little bit slow for fast scan. I planning to implement "fast" reaction mode, to search where is second end of some wire on the PCB or cable. This don't need precision, but fast reaction. And internal ADC is lot faster. That is all. Due to same reason, this input have faster RC filter on input. |
| jdobry:
First useful version of the my software. Video have only czech comment (sorry), but I thing that any comments aren't necessary. TODO list: * SW - fast response mode = use internal MCU ADC to detect touch and extent "beep" to 100ms minimum to find second end of any wire * SW - use internal ADC to measure in 3.5 ~ 10 ohm range (lower precision) * SW - mode to use "humming" sound intead "tone" * HW - 3D printed case * publish it. |
| PeterSpie:
Hi all, I have ordered the parts for the Shorty created by @kripton2035. Now I have one (maybe stupid question, but I really don't know): how do I connect the 5V which is in the schematic? I only see 9V which is connected to the battery, but the 5V? Regards, Peter |
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