Gravity Digital HX711 Load Cell 1Kg Weight Sensor Kit

This kit from DFRobot consists of a load cell for up to 1 kg and a Gravity board with the 24-bit A/D converter HX711. The load cell is connected to the screw terminal, the board is connected to the Arduino via two Gravity connectors. This makes it possible to build small scales such as a kitchen or letter scale; the weighing platform is built by the user.

Complete with acrylic plates, I2C interface and one-button calibration: Gravity I2C 1Kg Scale Kit HX711.

Note: The connection cables can be converted to male pins with Dupont cables M-M, so that they also fit an Arduino UNO.

Recommended Accessories:

• Dupont Cables M-M 10cm 20 Pieces
• Gravity IO Expansion Shield for Arduino V7.1

Features:

• A/D converter HX711 with 24 bits, gain 32, 64 or 128
• Data rate 10 SPS or 80 SPS, rejection of 50 Hz and 60 Hz
• 1 kg bar load cell with 4 wires, connected to the screw terminal
• 2 Gravity connectors for data and clock of the HX711
• Arduino library DFRobot_HX711, the calibration value is adjusted in the library

Application Examples:

• Kitchen and letter scales
• Monitoring the fill level of containers by weight
• Measuring weight and changes in weight

Documentation:

• Wiki DFRobot SEN0160
• Arduino library DFRobot_HX711 (GitHub)
• Schematic (PDF)
• Datasheet (PDF)

Technical Data:

• Manufacturer: DFRobot
• Manufacturer SKU: SEN0160
• Operating voltage: 5 V (HX711: 2.6 V to 5.5 V)
• Converter: HX711, 24 bits, 2 differential channels
• Current consumption HX711: below 1.6 mA
• Data rate: 10 SPS or 80 SPS
• Operating temperature HX711: -40 °C to +85 °C
• Load cell rated load: 1 kg
• Load cell excitation voltage: 5 V to 15 V
• Load cell sensitivity: 1.0 ± 0.15 mV/V
• Load cell combined error: 0.1 % of full scale
• Load cell zero drift: 0.05 / 0.03 % of full scale in 30 min
• Load cell zero temperature drift: 0.05 / 0.03 % of full scale per 10 °C
• Load cell zero output: ±0.1 mV/V
• Load cell input resistance: 1055 ± 15 Ω
• Load cell output resistance: 1000 ± 5 Ω
• Load cell overload: 200 % of full scale
• Load cell connection: red to E+, black to E-, white to S-, green to S+ (DFRobot labelling). If the reading falls under load, swap S+ and S-
• Board dimensions: 33 × 38 mm
• Weight: 53 g

Scope of Delivery:

• 1× Gravity HX711 board
• 1× load cell 1 kg
• 2× Gravity sensor cable