Contents
How do you make an Arduino weighing scale?
Connect the load cell wires to the HX711 module based on their color. Then connect DAT (data) pin to Arduino Analog pin A3 and connect CLK (clock) pin to Arduino analog pin A2. Connect Vcc and GND supply from Arduino power source pins. Also, connect a simple push button for calibration.
How do you use a digital weight measuring machine with Arduino?
Load cell which is an amplifier senses the weight and supplies an electrical analog voltage to HX711 Load Amplifier Module. Then this amplified value is fed to the Arduino where the output of HX711 is converted into the weight values in grams. The output result is displayed on the 16*2 LCD.
How much does a Arduino weigh?
Warranty
| Microcontroller | ATmega328P |
|---|---|
| LED_BUILTIN | 13 |
| Length | 68.6 mm |
| Width | 53.4 mm |
| Weight | 25 g |
How do you make a weighing scale at home?
Steps
- Use a hole punch to make holes in 2 small paper cups. Punch 2 holes in each cup.
- Cut 2 pieces of twine that are each around 1 foot (0.30 m) long. Any kind of twine will work, but a thick, strong twine will make the balance scale more durable.
- Tie the ends of the twine through the holes in the cups.
How do you make a digital weighing scale?
To build a digital scale yourself, we will use the following components coupled together:
- A 5kg load cell.
- An HX711 amplifier.
- An Arduino Uno Microcontroller Unit (MCU)
- Any suitable output screen (in this case an Arduino IDE Serial Monitor)
What are the types of weighing scales?
There are two main categories of scales: mechanical and digital.
- Mechanical scales: The mechanism of mechanical scales vary, but most commonly use a spring. The weight is applied and the measurement is shown by a moving dial.
- Digital scales: This type of scale employs the use of a special electrical circuit.
What household items weigh a gram?
Ten Objects that Weigh a Gram
- Dollar bill. This is referring to American currency, which means it could also be stated as American paper currency weighs 1 gram.
- Paper clip. The ever-popular paper clip example for a gram.
- 2-inch (standard) birthday candle.
- Stick of chewing gum.
How to build an Arduino weighing scale step by step?
If you are using a 4-wire load cell you will then need to solder the 4 leads from the load cell to a 4-wide pin strip. The first two pins will be E+ and E- and the other two A- and A+. I taped over the solder joints with PVC tape to protect them.
How to build a digital weight scale machine?
In the following discussions we will learn how to construct a digital weight scale machine using Arduino which can measure weights from few grams to 40 Kg (depending on the specs of your load cell) with reasonable accuracy.
What can a load cell weighing scale be used for?
The load cell weighing scale can be used to measure strain in real-time and allow engineers to record and ultimately study changes in mass and weight. Hrisko, J. (2019).
How big can a load cell be on an Arduino?
The project’s required materials. A load cell’s range can vary greatly. In the project, we use a load cell that can weigh up to 20kg. We will also be using a character LCD to display the load cell’s reading. Wire everything as listed in the table below.