💬 Micro (nano) ampere meter (double)

[NeverDie]

For the short press, with the original code, I noticed that an easy way to get it every time is to press until the display changes, then release. Anyhow, worked for me.

[mfalkvidd]

@AWI I'm unable to find the "local ADC lib". Is it available somewhere?

[AWI]

@mfalkvidd the 'local adc' library is the hx711 library which I placed in the sketch folder. Sorry for the confusion

[mfalkvidd]

@AWI where can I download it? It does not seem to be compatible with the hx711 library I found through the Arduino IDE Library Manager :(

EDIT: Seems to work with https://github.com/bogde/HX711 (if installing it manually)

[rmtucker]

I am confused the 1k resistors seem to be wired differently in AWI photo's and Nca78 photo's.
I would like to build this but not certain how it is wired now

[Nca78]

@rmtucker said in 💬 Micro (nano) ampere meter (double):

I am confused the 1k resistors seem to be wired differently in AWI photo's and Nca78 photo's.
I would like to build this but not certain how it is wired now

If you do like drawn on my post from July 7, it works.

[rmtucker]

@Nca78 said in 💬 Micro (nano) ampere meter (double):

@rmtucker said in 💬 Micro (nano) ampere meter (double):

I am confused the 1k resistors seem to be wired differently in AWI photo's and Nca78 photo's.
I would like to build this but not certain how it is wired now

If you do like drawn on my post from July 7, it works.

Are the blue and green resistors you have drawn on the back of the adc module the 1k resistors?
Have you soldered them on the other side?

[Nca78]

@rmtucker said in 💬 Micro (nano) ampere meter (double):

Are the blue and green resistors you have drawn on the back of the adc module the 1k resistors?
Have you soldered them on the other side?

Yes & yes.

[alexsh1]

@nca78 Exactly the same pin of the IC can be connected to the next pin (VCC) to change the refresh rate.

https://github.com/iforce2d/thrustTester/blob/master/README.md

[alexsh1]

I had some spare time and all parts so decided to assemble ampere meter.
Firstly, the sketch has to be changed. The lib Button.h does not exist (it has been renamed). It has to be changed to JC_Button.h. This has to be added to setup {}:

myBtn.begin();

in order for the button to work.

My question is this - reading are jumping like a yo-yo despite having a separate power supply (power bank). After calibration, reading maybe +30% or -30% off needless to say that its drifting dynamically. So constant current of 120uA is read +90 or +150 jumping up and down. Is this the way this meter is supposed to work?

[soroush_habibi]

Can you make a schematic of this circuit please?
I need this project.

[vidalv]

Hello, is there, somewhere, a real complete diagram of this project? This subject is interesting but not clearly documented ... It's a shame! Thank you.

[Enzo65]

Hi, pin A+ and pin B+ are connected together, on the same terminal block?

[metceyn]

@mfalkvidd If you have something related to this project, can you share it? (circuit schema or something)

[mfalkvidd]

@Metin-Can-AYAR sorry, I have nothing.

[Nca78]

@metceyn said in 💬 Micro (nano) ampere meter (double):

@mfalkvidd If you have something related to this project, can you share it? (circuit schema or something)

Hello, I will try to work again on this project in the coming days, I have made one years ago but reused (then broke !) the screen so it's not fonctional now. I will use another screen and make a functional one again as I will need it for some project.

[metceyn]

@Nca78 Thank you for your answer. I'm looking forward.

[metceyn]

@Nca78 Where do i attach the probes? How can i measure?

[metceyn]

Is the result we get ac or dc?

[ligteltelecom]

@Nca78 said in 💬 Micro (nano) ampere meter (double):

@rvendrame sure, I'll do it tomorrow morning as I cannot do it right now. In case I forget, don't hesitate to ring me ;)

Hi to all,

These two resistors are 1K ? (betwen E+ and A+) and (E- and B+) ?
Need I use Diodes to ground ?