Best Modules will be closed on May 1st in observance of Labor Day.
Orders placed after 3:00 PM on April 29th will be processed starting May 2nd.
The second-generation weighing kit has a measurement range of 0 to 5 kilograms. Compared to the previous generation, the key improvements include the integration of a 24-bit ADC module with a full-bridge load cell and the use of only a UART interface, which simplifies wiring.
We will verify that the product operates normally and re-calibrate it before shipping. However, users may need to re-calibrate the product if it has not been used for an extended period.
Therefore, we have uploaded the calibration program code for your reference. It can be downloaded from the “Document” label.
| Pin | Pin name | Function |
|---|---|---|
| 1 | GND | Ground |
| 2 | VDD | Power supply: 2.6V~5.5V |
| 3 | TXD | UART: TX |
| 4 | RXD | UART: RX |
| Part number | BMH12M205 | BMH12M105 |
|---|---|---|
| Operating voltage | 2.6V~5.5V | 2.7V~5.5V |
| Operating current | 4mA @3.3V | 5mA @5V |
| Measurement range | 0~5kg | 0~5kg |
| Accuracy | ⬥ 0~100g: ±2g
⬥ 100g~5kg: ±3g |
0.05% |
| Resolution | 1g / 0.1g | 1g |
| Interface | UART | UART / I2C |
| HS Code (reference) | 8473.50.00.00-1 |
|---|
