copilot

1. Reset (RST):
   • Status: Unable to determine due to lack of project detailed information.
   • Action Item: Review connection of RST (Designator Pin no. 7). If it is not connected to an external pull-up resistor, consider adding one. The ESP-01 module typically has an internal pull-up on the Reset pin, but adding a 10KΩ external pull-up resistor provides a stronger guarantee against unintentional resets.
2. Enable (EN):
   • Status: Unable to determine due to lack of project detailed information.
   • Action Item: Review connection of EN (Designator Pin No. 6). If it is not connected to an external pull-up resistor, consider adding one. The ESP-01 module commonly has an internal pull-up on the EN pin, but adding a 10KΩ external pull-up resistor can strengthen the signal and prevent inadvertent disabling.

copilot

1. VCC (Power): Connect the VCC pin of the ESP-01 (Designator Pin No. 8) to the VCC pin on the relay module. ESP-01 modules typically operate at 3.3V, so you'll need a relay that supports this voltage or use a voltage regulator if your relay operates at 5V.
2. Ground: Connect the Ground (GND) pin of the ESP-01 (Designator Pin No. 1) to the Ground (GND) pin on the relay module to complete the circuit.
3. Control: You would run a line from one of your GPIO pins on the ESP-01 to the signal input on the relay module. For example, you could use IO0 or IO2 (Designator Pin numbers 3 and 2, respectively). This line will allow the ESP-01 to control the on/off state of the relay.
4. Reset and Enable (RST and EN): As discussed earlier, you might want to connect pull-up resistors to RST (Designator Pin No. 7) and EN (Designator Pin No. 6).
5. Additional wiring: If you need to receive data from another device, you would use RXD (Designator Pin No. 4). Similarly, to send data to another device, you would use TXD (Designator Pin No. 5).

copilot

1. ESP-01 Module.
2. Relay Module (preferably with an optocoupler for isolation)
3. 10kΩ Resistors x2 (pull-up for EN and RST).
4. 3.3v Zener Diode (for voltage regulation).
5. 1N4001 Protection Diode (to protect against back-EMF when relay module deactivates) - Only needed if the relay module doesn't already include one.
6. Power Supply - The ESP-01 requires a 3.3V supply, the relay module may require a different voltage depending on its specification.

1. Connect the VCC pin on the ESP-01 (Pin No. 8) via the 3.3V Zener Diode to the power supply. Make sure the power supply voltage does not exceed the Zener voltage.
2. Connect the EN pin (Pin No. 6) and RST pin (Pin No. 7) on the ESP-01 to the VCC pin (Pin No. 8) through 10kΩ pull-up resistors.
3. Connect the GND Pin (Pin No. 1) to the negative side (common ground) of the power supply.
4. Connect IO0 or IO2 (Pin numbers 3 and 2) from the ESP-01 to the control input (IN) on the relay module.
5. If the relay module operates at a different voltage (for example, 5V), supply the power separately to the relay module from your power supply.
6. Connect the GND pin of the relay module back to your common ground.
7. If your relay module doesn't have a built-in blocking diode (check its datasheet), connect a 1N4001 diode across the Relay's coil to safeguard the circuit from back-EMF when relay deactivates. Connect the cathode (stripe side) of the diode to the VCC of the relay module and the anode (non-stripe side) to the relay's GND.

copilot

1. Conecta el terminal anódico (terminal largo) del LED al pin "IO2" del módulo ESP-01.
2. Conecta el terminal cátodico (terminal corta) del LED a un extremo de la resistencia.
3. Conecta el otro extremo de la resistencia al pin "GND" del módulo ESP-01.

ortizelectronic

copilot

C
#define LED_PIN 2

void setup() {
  pinMode(LED_PIN, OUTPUT);
}

void loop() {
  digitalWrite(LED_PIN, HIGH);   // enciende el LED
  delay(1000);                   // espera un segundo
  digitalWrite(LED_PIN, LOW);    // apaga el LED
  delay(1000);                   // espera un segundo
}