HX711 Red AD Module: With HX711 24 bits ad chip With metal shield, meet various installation welding methods Onboard 2Pcs 47uF bile capacitance Reserved CPU welding position, not include the CPU Two kinds of pin: Straight Pin and Curved Pin Operation supply voltage range: 2.6 - 5.5V Module working voltage: 4.8 - 5.5V Operation temperature range: -20 ~ +85? Typical current : 1.6mA Size: 29mm*17mm*4mm Weight: 5g Features: (1)Two selectable differential input channels (2)On-chip active low noise PGA with selectable gain of 32, 64 and 128 (3)On-chip power supply regulator for load-cell and ADC analog power supply (4)On-chip oscillator requiring no external component with optional external crystal (5)On-chip power-on-reset (6)Simple digital control and serial interface: pin-driven controlsno programming needed (7)Selectable 10Hz or 80Hz output data rate (8)Simultaneous 50Hz and 60Hz supply rejection (9)Current consumption including on-chip analog power supply regulator: normal operation <1.7mA, power down <1uA (10)With metal shield, strong anti-interference, reserved CPU position, can upgrade secondary development by yourself Load Cell: The sensor is a group of half-bridge strain gauge, there are 3 ways to use it : 1. Use one sensor with an external resistor to form a full-bridge measurement, the range of a sensor range: 50kg. External resistance on the higher requirements. 2. Use two sensors to form a full-bridge measurement, measuring range for the sum of the two sensors: 50kgx2 = 100kg 3. Use four sensors to form a full-bridge measurement, measuring range for the sum of four sensors: 50kgx4 = 200kg

This load sensor, sometimes called a strain gauge, is the same one found in digital bathroom scales. Note: The J1 jumper on the back of the module is the data output rate 80hz/10hz of the HX711 chip, J1 open, the output rate is 80hz, that is, 80 times per second ad conversion, J1 short-circuit, the output rate is 10hz. On-chip active low noise PGA with selectable gain of 32, 64 and 128. Onboard 2Pcs 47uF bile capacitance, meet various installation welding methods. With metal shield, strong anti-interference, reserved CPU position, can upgrade secondary development by yourself.