مخطط الأطراف
مخطط أطراف مراقب التيار/القدرة INA219 (GY-219)
الأطراف
- VCC (3–5.5V)
- GND
- SCL / SDA (I2C — A0/A1 jumpers give 0x40, 0x41, 0x44 or 0x45)
- VIN+ / VIN− — HIGH-SIDE shunt: put them in series with the supply lead of the load
- Measures bus voltage 0–26V and ±3.2A with the onboard 0.1Ω shunt
المواصفات
| جهد التغذية | 3–5.5 V |
|---|---|
| الواجهة | I2C |
| I2C address | 0x40 default (0x41, 0x44, 0x45 via A0/A1) |
| Bus voltage range | 0–26 V |
| Shunt voltage range | ±320 mV max |
| Current range | ±3.2 A with the 0.1 Ω shunt |
| Current resolution | ≈0.8 mA (0.1 Ω shunt) |
| ADC | 12 bit |
| Accuracy | ±0.5 % max (INA219B), ±1 % (INA219A) |
| Supply current | 1 mA typical |
