ADC for use with load cell

[Globuli]

Hi there!

Could I use the ESP32's ADC to read a 5kg load cell sensor such as this one:
http://www.robotshop.com/en/micro-load-cell-5-kg.html

I need a resolution of about +/- 0.5g

Would the "Ultra Low Noise Analog Pre-Amplifier" be of any help there?

Right now I'm using a HX711 24-Bit ADC with an RFduino board and was wondering if I could skip the HX711 with the ESP32.

Thank you so much helping me with the awesome ESP32

[Sprite]

In theory, yes. Unfortunately, as far as I'm aware, the LNA is not documented yet, so you may have to wait until it is.

[WiFive]

In theory, yes. Unfortunately, as far as I'm aware, the LNA is not documented yet, so you may have to wait until it is.

Less doom, more doc!

[Sprite]

I know you jest, but you have no idea how much Doom helped to squash the bugs out of the PSRAM code, and later on the mmap code. It started as a stupid thing, but I'm really glad I started that.

Also, seems I was wrong. The LNA actually is documented, around page 448 of the technical reference manual. We do not have a driver for it yet, though.

[WiFive]

Of course! I meant to imply sitting around playing it, not the porting.

[Globuli]

Thank you very much for your replies

I'll give it some time then.

While we're at it: Do any of you know of an alternative to the ESP32 regarding ADC/amplifier capability? I'm only interested in BLE at the moment.

Thank you!

[Micjm97219]

Hello! I'd love to be able to hook up a load cell directly to the ESP32 instead of having to use an additional ADC. Has there been any progress on this thread?