MAKERFACTORY M5Stack Weighing Interface User guide [ml]
BN 2108266
M5Stack Weighing Interface
EN Quick Instru ctions
Version: 1
Delivery Content
l Product
l Screw terminal plug
l Grove c able
Development Resources
Development resources and additional product information are available from:
https: //www.conrad.de/ https: //docs.makerfactory.io/
Description
The product is a weighing interface. It integrates a 24 bit A/D chip
HX711.
The input multiplexer selects either channel A or B differential input to
the low-noise programmable gain amplifier (PGA).
Channel A can be programmed with a gain of 128 or 64, corresponding to a full-scale differential input voltage of ±20 mV or ±40
mV respectively, when a 5 V supply is connected to the AVDD analog
power supply pin. Channel B has a fixed gain of 32.
There is no programming needed for the internal registers. All controls
to the HX711 are through t he pins.
This product communicates with the M5Core through GPIO (26/36).
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Features
l Two selec table differential input channels
l On-chip act ive low noise PGA with selec table gain of 32, 64
and 128
l On-chip power supply regulator for load-c ell and ADC analog
power supply
l On-chip oscillat or requiring no external component wit h
optional ext ernal cryst al
l On-chip power-on-reset
l Simple digital cont rol and serial interface: pin-driven controls,
no programm ing needed
l Selectable 10 SPS or 80 SPS output data rat e
l Simultaneous 50 Hz and 60 Hz supply reject ion
l 16 pin SOP-16 package
l Supports UIF low (Block ly , Py thon), Arduino®
l Two Lego compatible holes
Applications
l Mic ro Weight Meter
l Kitc hen Scale
Pinout / Pin Map
M5Core GPIO36 GPIO26 5V GND
Product Data Pin (DAT) Clock Pin (CLK) 5V GND
Specifications
Input Voltage 2.6 - 5.5 V/DC
Current Consumption
Operating Temperature range -40 t o +85 °C
Dimensions (approx.)
Weight (approx.) 8 g
Operation: <1.5 mA
Standby: <1µA
32.2 x 24.2 x 10.5 mm
(W x D x H )
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