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Dying Sapphire Speeder Bike
Controls
Properties
Availability & Pricing
| Distributor | Qty 1 | |
|---|---|---|
| Digi-Key | $15.62–$20.60 | |
| LCSC | $5.21 | |
| Mouser | $10.32 | |
Assets
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floydiano22
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- Provide power to the current sensor.
- Connect the sensor's output to an analog input on the ESP32 for measurement.
- Ensure proper ground connection between both modules.
Assumptions- U2's operating voltage range is compatible with U4's 3.3V.
- You intend to measure current within the capabilities of the ACS712 (up to 20A).
- The analog input pins on the ESP32 are utilized for sensor data reading.
Connections-
Power Supply to U2:
- Connect U2:VCC to U4:3V3 (Pin 1) to provide it with power.
- Connect U2:GND to U4:GND1 (Pin 14) to establish a common ground.
-
Data Output from U2 to U4:
- Connect U2:VIOUT (Pin 7, Voltage output from the current sensor) to one of the ESP32's analog input pins. Considering U4's pinout, a good choice would be U4:IO34 (Pin 5) or U4:IO35 (Pin 6), as they are commonly used for analog inputs. Let's use IO34 in this example for no specific preference. So, connect U2:VIOUT to U4:IO34.
-
Optional - Filter Pin:
- If needed, the FILTER pin (U2:FILTER, Pin 6) can be connected to a low-pass filter. However, for simplicity, you might not need this in a basic setup. The filter is used to smooth out the noise in the signal. If unused, you can leave this pin unconnected or consult the ACS712 datasheet for recommended practices.
Summary