Circuit Documentation

Summary

This circuit is designed to read voltage and current sensors to calculate wattage, control an AC bulb wirelessly, and indicate WiFi connection status using LEDs. The red LED indicates a loss of connection, while the green LED indicates a connection. The relay controls the AC bulb based on the web or an app interface. The circuit is controlled by an ESP32C3 microcontroller.

Component List

1. LED: Two Pin (green)

   • Pins: cathode, anode
   • Description: Green LED for indicating WiFi connection status.
   • Properties: None

2. LED: Two Pin (red)

   • Pins: cathode, anode
   • Description: Red LED for indicating WiFi disconnection status.
   • Properties: None

3. Resistor (200 Ohms)

   • Pins: pin1, pin2
   • Description: Current limiting resistor for LEDs.
   • Properties: Resistance: 200 Ohms

4. Voltage Sensor

   • Pins: Ground, Phase, Vcc, Out, Gnd
   • Description: Sensor to measure voltage.
   • Properties: None

5. 1 Channel Relay 5V

   • Pins: VCC, GND, IN, NC, COM, NO
   • Description: Relay to control AC bulb.
   • Properties: None

6. Mini AC-DC 110V-230V to 5V 700mA Module

   • Pins: GND, 5v, Neutral, Life
   • Description: Power supply module to convert AC to 5V DC.
   • Properties: None

7. SIM 800L V2.0 GSM

   • Pins: SIM_TXD, VDD, SIM.RXD, 5V/4V, GND, RST
   • Description: GSM module for communication.
   • Properties: None

8. AC Bulb

   • Pins: P, N
   • Description: AC bulb controlled by the relay.
   • Properties: None

9. Ac Supply

   • Pins: +ve, -ve
   • Description: AC power supply.
   • Properties: None

10. Flush Switch

    • Pins: GND, VCC
    • Description: Switch to control the relay.
    • Properties: None

11. ACS712 Current Sensor 5A 20A 30A

    • Pins: 1, 2, GND, OUT, VCC
    • Description: Sensor to measure current.
    • Properties: None

12. ESP32C3 Supermini

    • Pins: GPIO05, GPIO06, GPIO07, GPIO08, GPIO09, GPIO10, GPIO20, GPIO21, GPIO00, GPIO01, GPIO02, GPIO03, GPIO04, 3.3V, GND, +5V
    • Description: Microcontroller to control the circuit.
    • Properties: None

Wiring Details

LED: Two Pin (green)

• cathode: Connected to pin2 of Resistor (200 Ohms)
• anode: Connected to GPIO06 of ESP32C3 Supermini

LED: Two Pin (red)

• cathode: Connected to pin1 of Resistor (200 Ohms)
• anode: Connected to GPIO05 of ESP32C3 Supermini

Resistor (200 Ohms)

• pin1: Connected to cathode of LED: Two Pin (red) and GND net
• pin2: Connected to cathode of LED: Two Pin (green) and GND net

Voltage Sensor

• Ground: Connected to -ve of Ac Supply, Neutral of Mini AC-DC 110V-230V to 5V 700mA Module, and N of AC Bulb
• Phase: Connected to 1 and 2 of ACS712 Current Sensor 5A 20A 30A, NO of 1 Channel Relay 5V, +ve of Ac Supply, Life of Mini AC-DC 110V-230V to 5V 700mA Module, and P of AC Bulb
• Vcc: Connected to 3.3V of ESP32C3 Supermini
• Out: Connected to GPIO02 of ESP32C3 Supermini
• Gnd: Connected to GND net

1 Channel Relay 5V

• VCC: Connected to 5v of Mini AC-DC 110V-230V to 5V 700mA Module, VCC of ACS712 Current Sensor 5A 20A 30A, +5V of ESP32C3 Supermini, and 5V/4V of SIM 800L V2.0 GSM
• GND: Connected to GND net
• IN: Connected to GPIO04 of ESP32C3 Supermini
• NC: Not connected
• COM: Connected to VCC of Flush Switch
• NO: Connected to Phase of Voltage Sensor

Mini AC-DC 110V-230V to 5V 700mA Module

• GND: Connected to GND net
• 5v: Connected to VCC of 1 Channel Relay 5V, VCC of ACS712 Current Sensor 5A 20A 30A, +5V of ESP32C3 Supermini, and 5V/4V of SIM 800L V2.0 GSM
• Neutral: Connected to Ground of Voltage Sensor, -ve of Ac Supply, and N of AC Bulb
• Life: Connected to Phase of Voltage Sensor, 1 and 2 of ACS712 Current Sensor 5A 20A 30A, NO of 1 Channel Relay 5V, +ve of Ac Supply, and P of AC Bulb

SIM 800L V2.0 GSM

• SIM_TXD: Connected to GPIO21 of ESP32C3 Supermini
• VDD: Not connected
• SIM.RXD: Connected to GPIO20 of ESP32C3 Supermini
• 5V/4V: Connected to VCC of 1 Channel Relay 5V, VCC of ACS712 Current Sensor 5A 20A 30A, +5V of ESP32C3 Supermini, and 5v of Mini AC-DC 110V-230V to 5V 700mA Module
• GND: Connected to GND net
• RST: Not connected

AC Bulb

• P: Connected to Phase of Voltage Sensor, 1 and 2 of ACS712 Current Sensor 5A 20A 30A, NO of 1 Channel Relay 5V, +ve of Ac Supply, and Life of Mini AC-DC 110V-230V to 5V 700mA Module
• N: Connected to Ground of Voltage Sensor, -ve of Ac Supply, and Neutral of Mini AC-DC 110V-230V to 5V 700mA Module

Ac Supply

• +ve: Connected to Phase of Voltage Sensor, 1 and 2 of ACS712 Current Sensor 5A 20A 30A, NO of 1 Channel Relay 5V, Life of Mini AC-DC 110V-230V to 5V 700mA Module, and P of AC Bulb
• -ve: Connected to Ground of Voltage Sensor, Neutral of Mini AC-DC 110V-230V to 5V 700mA Module, and N of AC Bulb

Flush Switch

• GND: Connected to 1 and 2 of ACS712 Current Sensor 5A 20A 30A, Phase of Voltage Sensor, NO of 1 Channel Relay 5V, +ve of Ac Supply, Life of Mini AC-DC 110V-230V to 5V 700mA Module, and P of AC Bulb
• VCC: Connected to COM of 1 Channel Relay 5V

ACS712 Current Sensor 5A 20A 30A

• 1: Connected to GND of Flush Switch, Phase of Voltage Sensor, NO of 1 Channel Relay 5V, +ve of Ac Supply, Life of Mini AC-DC 110V-230V to 5V 700mA Module, and P of AC Bulb
• 2: Connected to GND of Flush Switch, Phase of Voltage Sensor, NO of 1 Channel Relay 5V, +ve of Ac Supply, Life of Mini AC-DC 110V-230V to 5V 700mA Module, and P of AC Bulb
• GND: Connected to GND net
• OUT: Connected to GPIO03 of ESP32C3 Supermini
• VCC: Connected to VCC of 1 Channel Relay 5V, 5v of Mini AC-DC 110V-230V to 5V 700mA Module, +5V of ESP32C3 Supermini, and 5V/4V of SIM 800