Thank you very much!
Everything works fine on this firmware.
Probes (15cm with clamps at the ends), capacitors 25nF and 145nF for calibration are the same (film) as previously used (on V1.12), no changes in the type of soldering or replacement of parts were made (only a 6-pin cable is soldered for firmware).
1. What has changed (compared to the original firmware 1.12):
- the supply voltage shows more accurately (8.263V multimeter RM219 - 8.28V device) +/- 0.03V which is fine, it used to be +/- 0.2V
- subjective - it looks prettier in color)
- offhand measurements of capacitors, resistors and transistors are about the same (more precisely, then I will compare with old records)
- measurement speed is approximately the same
2. What raises questions (for me personally, although maybe I still don't understand something or haven't figured it out to the end):
- The ESR of many capacitors has become .00, although it used to show 0.03 - 0.07 .... for those that showed up to 0.2-0.8 or more, it also became almost half less ...
- when calibrating in the first steps, it shows R .00 .00 .00 although this may be the influence of the wires of the probes ... but should it be shorter with jumpers? I will understand and try))), although it measures the resistances relatively accurately (compared to RM219)
3. What I would like (if of course possible):
- completely remove auto shutdown, or make it as long as possible, or what delays to set so that it does not turn off itself ... to turn it on and until the battery is completely discharged))))
- a little bit even brighter to make the inscriptions ... otherwise it seems pale to me.
p.s. I recently had a tester, so don't judge strictly, I'm still learning to work with him)))