Best Modules will be closed from Apr. 3nd to Apr. 6th in observance of Tomb Sweeping Day.
Please be informed that any orders placed after 15:00 PM Apr. 1st (Taiwan time, UTC+8) will be processed on Apr. 7th.
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 |
|---|
