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Project logs / Re: Really universal soldering controller
@sparkybg you saw this?
soo compressed
Open Source Hardware
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soo compressed Werva. I have your same issue cannot find U6 so it is safe to use REF3130AIDBZT instead since I can order that easy
https://imgur.com/a/f21VxsF
You are correct it should be empty on JCB245 or any other solder iron, most probably have more problems sorry does the JBC245 work at least? if not I would check the wiring for the JBC245.
I told you it is U6
REF3130 looks to be a better specced equivalent to REF3030 (20ppm vs 75ppm max temp coefficient), so it should be fine to use.
https://eu.mouser.com/Texas-Instruments/Semiconductors/Power-Management-ICs/Voltage-References/REF3030-Series/_/N-10vu2?P=1yygy57Z1z0zls6
Mouser , farnell , digi and more have them the only problem is to justify the shipping for this little part.
if it shows 511, then something is wrong with signal path or reference. In order for MCU to detect "sensor open/no instrument" condition, the ADC should go to it's maximum value of 1023. 511 on screen means that it does not go to 1023, but to a value less than this. This means that either the current sources, the amplifiers, the reference, or the power supply is not functioning properly.@sparkybg
The power supply at the MCU pins should be 3.3V, and the reference should be 3.0V. Then, on C210, when no cartridge is connected, the SENSEA should be around 1.5 - 2V, far beyond the threshold of full ADC 1023 digits after the amplification.
you have list of component what should replacement? what is most important to working?