Yes, here is a picture of the DTU-1701, you can see J6 goes to the MCU which is different to the Bside ESR02.
I think these are a cheap clone to be honest, it was only £16.
DTU-1701
I don't have any AY-AT clone but my guess would be between 20 and 30mA on average.
Hey everyone!
To those with an AY-AT or clone (i.e. color TFT version), could somebody measure how much current it draws in operation?
QuoteTo those with an AY-AT or clone (i.e. color TFT version), could somebody measure how much current it draws in operation?
My AY-AT uses about 27mA during component testing. With short spikes up to 30mA, and about 23mA during frequency generation.
Hey everyone!
To those with an AY-AT or clone (i.e. color TFT version), could somebody measure how much current it draws in operation?Those with a dim screen on the AY-AT
In the power supply circuit of the screen backlite there are as many as two current-heating resistors in series 220 ohms and the amount 440 ohms
One stands on the red board (I replaced it with a short jumper).
The second one is on a board with a display.
For normal visibility of the screen it was necessary to change it to 100 ohm resistor.
The consumption of current on the battery became 47mA screen is perfectly visible.
Yes, here is a picture of the DTU-1701, you can see J6 goes to the MCU which is different to the Bside ESR02.
I think these are a cheap clone to be honest, it was only £16.
DTU-1701I bought himself DTU-1701. I painted a complete schematic diagram
https://yadi.sk/d/yW8xa5NJgUo5z/BSideESR02(DTU-1701)/Schematic%20diagram
Red color means changes made to the scheme:
1. Replace the frail 7150 on the LP2950-5.0(better MCP1702-5.0)
2. Replace TL431 on LM4040A (R2A)
3. Added ceramics capacitors 10mkF on LP2950 input and Vcc processor(pins 4-6)
4. Control divider resistors R21-R22 for voltage replaced 47kOm, control point moved to the collector Q2. (optional).
5. Capacitors C10 deleted - normal work without it.
6. Replace quartz at 16MHz (optional).
Audit board 3.1 - changes in comparison with earlier BSideESR02 virtually none except for a correct wiring ICSP connections-now all your contacts conveniently separated by the connector. Photo board to rework and after it will be lower.
Firmware:
New English and Russian k-firmware revision 813 for this clone https://yadi.sk/d/yW8xa5NJgUo5z/BSideESR02(DTU-1701)/Firmware/Karl-Heinz%20K%C3%BCbbeler%20
In version 8.13 it shows DC_Power_txt or something, when powered with an adapter,
translation not correct. Battery Power is indicated OK.
In version 8.13 it shows DC_Power_txt or something, when powered with an adapter,
translation not correct. Battery Power is indicated OK.
Yes, this is my mistake when compiling English firmware. I fixed, now the DC Power Mode is displayed correctly.
https://yadi.sk/d/yW8xa5NJgUo5z/BSideESR02(DTU-1701)/Firmware/Karl-Heinz%20K%C3%BCbbeler%20/English
Meter "Not calibrated"
But, the meter says directly "Not Calibrated".
Looks like the meter sees negative resistance and "resets calibration"
Tested this over again and calibration lost again.
Now I know, no problem, but want to tell this strange behaviour.
If someone (maybe me) was to turn the $20 tester circuit into a small PCB with a small OLED display, couldn't the Madires code be modified to run some pretty good tweezers?