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V1 supplies 5V power which is used to generate the +5V and VIN nets.J4 is connected to J1.J1 connects to both the temperature sensor $DHT11$ U1 and the relay module $KY-019$ K1.VIN and GND are connected to K1 and J1.Reviews
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Yeasty Azure Warp Drive
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Availability & Pricing
| Distributor | Qty 1 | |
|---|---|---|
| Digi-Key | $0.00 | |
| LCSC | $1.13 | |
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erick07
copilot
- J4: All pins (Pin_1 to Pin_6) are unconnected.
- J1:
- Unconnected: Pin_1, Pin_2
- Connected: Pin_3 (RESET), Pin_4 (Net 2), Pin_5 (Net 1), Pin_6, Pin_7 (GND), Pin_8 (Net 3)
- K1:
- Unconnected: NC
- Connected: VCC, Signal, GND, COM, NO
- V1: All pins (ANODE, CATHODE) are unconnected.
- U1:
- Unconnected: NC
- Connected: VDD, DATA, GND
- J3: All pins (Pin_1 to Pin_8) are unconnected.
- J2: All pins (Pin_1 to Pin_10) are unconnected.
- M1: All pins (+, -) are unconnected.
Components Requiring Pull-Up or Pull-Down Resistors-
Arduino Uno R3
- The Arduino Uno R3 uses internal pull-up resistors for its digital I/O pins. These can be enabled in the firmware. No external pull-ups are generally needed unless specified for a specific design.
-
K1 (KY-019 Relay Module)
- NC (Normally Closed): No pull-up or pull-down required.
- Signal pin typically requires a proper signal to operate the relay but no special resistor is needed as it's already connected.
-
U1 (DHT11 sensor)
- NC pin does not require a pull-up or pull-down resistor.
- DATA pin often uses a pull-up resistor, typically 10kΩ, to ensure stable communication:
- Connect a 10kΩ resistor: DHT11 VDD to DATA.
Conclusion