Hi, I am pretty new in the forum but I use the AVR component tester ( different revisions ) since years. I just compiled and installed the 1.53m and I saw something strange measuring a Schottky diode 1N5817. The junktion capacity is huge, C 318μF. I compared the reading with another tester on firmware 1.13k, this one reads normal. And tested 2 more diodes as comparison, they get similar values on 1.13k and 1.53m, but the 1.53m does not read the reverse current.
Is this a known behaviour or is it an issue with the 1.53m ?
See below the readings, and details of the component testers.
1N5817
1.13k ( mega328_color (GM328A) 8MHz )
Uf=259mV
77pF-28pF @0-5V
Ir=.74μA
1.53m ( M328Kit+TFT(AY-AT) 16MHz )
Vf 284mV (88)
I_R 0,65μA
C 318.μF
1N4007
1.13k ( mega328_color (GM328A) 8MHz )
Uf=680mV
6.2pF-4.9pF @0-5V
Ir=2nA
1.53m ( M328Kit+TFT(AY-AT) 16MHz )
Vf 693mV
C 8pF
1N4148
1.13k ( mega328_color (GM328A) 8MHz )
Uf=707mV
.21pF-.05pF @0-5V
Ir=2nA
1.53m ( M328Kit+TFT(AY-AT) 16MHz )
Vf 710mV
C 1pF