DIY Adapter for Capacitive Scales
Supported Scales
DIY DRO adapter kit supports 3V capacitive linear scales that use iGaging 21-bit protocol, iGaging Absolute protocol and BIN6 protocol. This inludes:
- iGaging EZ-View DRO Plus
- iGaging DigiMag (and it's rebranded variants)
- iGaging Absolute DRO Plus
- Shahe 5403-xxx "Digital Liner DRO Scales with Round Display"
- Shahe 5403-xxxA/F "Digital Liner DRO Scales with Square Display"
If your scale displays look like one of the displays below (including color and markings), this adapter will work with them
If you are unsure which scales you have, please refer to the list of Compatible Capacitive DRO Scales to identify your model.
Features
| Scale Inputs | 4 |
|---|---|
| Tachometer Input | Yes |
| Probe/Height Setter | Yes |
| Power Supply | 5V DC - 9V DC |
| Current Draw | Approx. 50 mA |
| Width | 2.325" |
| Length | 2.9" |
Bill of Materials
| Value | Description | Qty. | Reference |
|---|---|---|---|
| MSP430G2553 | 16-Bit mixed-signal microcontroller (pre-programmed) | 1 | U1 |
| HC-05 | Bluetooth Transceiver, Slave | 1 | HC-05 |
| LM1117T-3.3 | Voltage Regulator, 3.3V 800 mA, LDO | 1 | LM1117 |
| Capacitor, 100 uF | Cap. electrolytic, 110uF, 35V | 2 | C1, C2 |
| Capacitor, 0.1uF | Cap. ceramic, 0.1uF 50V | 9 | C3-C11 |
| Resistor, 330 Ohm | Metal film resistor, 330 Ohm, 1/4W, 5% | 2 | R2, R3 |
| Resistor 47KOhm | Metal film resistor, 47 KOhm, 1/4W, 5% | 1 | R1 |
| Diode | Schottky Diode, 20 mA 40 Volt | 2 | D1, D2 |
| LED | LED, Green 3mm, 20 mA | 2 | HB, PWR |
| Power Jack | 2.1x5.5 mm power input jack, PCB mount | 1 | Pwr |
