Uploaded December 2017 | Updated September 2026, 1 week ago
Does the software-calibration improve the accuracy of the previously tested battery charge-meter?
Support Roger on Patreon: patreon.com/kainkalabs
It could if it would have been done in the right way to null out the offset-error of the OpAmp used for current-measurement.
But again it´s not done properly.
Not to speak of the additional error in timing due to the +/-10% tolerance in the internal RC-oscillator of the microcontroller.
So the errors are way off the stated 1,5%.
Does the software-calibration improve the accuracy of the previously tested battery charge-meter?
Support Roger on Patreon: patreon.com/kainkalabs
It could if it would have been done in the right way to null out the offset-error of the OpAmp used for current-measurement.
But again it´s not done properly.
Not to speak of the additional error in timing due to the +/-10% tolerance in the internal RC-oscillator of the microcontroller.
So the errors are way off the stated 1,5%.
![Every maker should have…[Pt.25]…an IR Thermometer](https://i.ytimg.com/vi/wol957PJScQ/mqdefault.jpg "Every maker should have…[Pt.25]…an IR Thermometer
The poor-man´s Infrared Imaging-Camera :-)
Roger explains how an electronic Infrared-Thermometer (or Pyrometer) works and what traps there are when taking measurements with them.
Why is a high Spot-to-Distance ratio of the IR-lens important?
What is the optical parallax of the laser-pointer?
What is the emissivity-factor and when can it give false measurements?
Shop: http://www.ak-modul-bus.de/stat/laborzubehoer.html
Forum-Thread: https://forum.kainkalabs.com/forumdisplay.php?fid=13
twitter: http://twitter.com/kainkalabs
facebook: http://facebook.com/kainkalabs")
![Every Maker Should have...[Pt.39]...a Solder-Iron Thermometer](https://i.ytimg.com/vi/yLrHQyJil58/mqdefault.jpg "Every Maker Should have...[Pt.39]...a Solder-Iron Thermometer
A surprisingly accurate, cheap and user-friendly Chinese solder-iron thermometer. Also resold by HAKKO :-)
Support Roger on Patreon: https://www.patreon.com/kainkalabs
Very useful if you have a solder-station/solder-iron of unknown quality to check the true temperature at the solder-tip.
For the FG-100 there are also temperature-probes for solder-pots and for hot-air stations available.
Furthermore a teardown of the FG-100 & comparison with the ELV LTT1 and a normal thermocouple thermometer.
Link to the ELV LTT1:
https://www.elv.de/L%C3%B6tkolbentemperatur-Messger%C3%A4t-LTT-1/x.aspx/cid_726/detail_31395")
