Shelly Power Strip 4 Gen4

Product Image

GPIO Pinout

Pin	Function
GPIO1	Relay 4 (Outlet 4)
GPIO2	Relay 2 (Outlet 2)
GPIO3	Relay 3 (Outlet 3)
GPIO4	Relay 1 (Outlet 1)
GPIO6	ADE7953 #0 IRQ (Outlets 1+2)
GPIO7	ADE7953 #1 IRQ (Outlets 3+4)
GPIO10	SPI CS1 – ADE7953 #1
GPIO11	SPI MOSI
GPIO12	SPI MISO
GPIO13	SPI SCLK
GPIO15	SPI CS0 – ADE7953 #0
GPIO16	UART TX (Debug / Flash)
GPIO17	UART RX (Debug / Flash)
GPIO18	WS2812B Data (12 LEDs, via R36)
GPIO20	Button 1 (SW1, low-active)
GPIO21	Button 4 (SW4, low-active)
GPIO22	Button 2 (SW2, low-active)
GPIO23	Button 3 (SW3, low-active)

Flashing

Note: OTA flashing from the original Shelly firmware is not possible. Shelly Gen4 verifies OTA images with an ECDSA signature using their private key. The device must be flashed via UART.

Wiring

Connect a 3.3V USB-to-serial adapter to the UART pads on the ESP-Shelly-C68F module (J1 connector). Testpoints are also available on the PCB.

J1 Connector Pinout

Pin	Function
1	GND
2	IO9
3	EN
4	VCC
5	RXD
6	TXD
7	NC

PCB Testpoints

The testpoints are labeled on the PCB. When using an ESP-Prog, connect as follows:

PCB Label	ESP-Prog
3.3V	VCC
GND	GND
RESET	EN
IO9	IO0
U0RXD	RXD0
U0TXD	TXD0

To enter download mode, hold IO9 low (connect to GND) while powering on the device. Release after boot.

Backup the original firmware

Always back up the original firmware before flashing:

esptool.py --chip esp32c6 --port /dev/ttyUSB0 --baud 460800 \
  --before no-reset --after no-reset \
  read_flash 0 0x800000 shelly-powerstrip4-gen4-backup.bin

Compile

esphome compile shelly-powerstrip4-gen4.yaml

The factory binary is located at:

.esphome/build/shelly-power-strip-gen4/.pioenvs/shelly-power-strip-gen4/firmware-factory.bin

Flash

esptool.py --chip esp32c6 --port /dev/ttyUSB0 --baud 460800 \
  write_flash 0x0 firmware-factory.bin

Basic Configuration

esphome:
  name: shelly-powerstrip4-gen4
  friendly_name: "Shelly Power Strip 4 Gen4"

esp32:
  variant: ESP32C6
  board: esp32-c6-devkitc-1
  flash_size: 8MB
  framework:
    type: esp-idf
    version: recommended

logger:
api:
ota:
wifi:
captive_portal:

spi:
  - id: spi_bus
    clk_pin: GPIO13
    mosi_pin: GPIO11
    miso_pin: GPIO12

sensor:
  - platform: ade7953_spi
    id: ade7953_0
    cs_pin: GPIO15    # Outlets 1+2
    irq_pin: GPIO6
    update_interval: 10s
    voltage:
      name: "Voltage"
    frequency:
      name: "AC Frequency"
    current_a:
      name: "Outlet 1 Current"
    current_b:
      name: "Outlet 2 Current"
    active_power_a:
      name: "Outlet 1 Power"
    active_power_b:
      name: "Outlet 2 Power"

  - platform: ade7953_spi
    id: ade7953_1
    cs_pin: GPIO10    # Outlets 3+4
    irq_pin: GPIO7
    update_interval: 10s
    voltage:
      name: "Voltage 2"
      internal: true
    frequency:
      name: "AC Frequency 2"
      internal: true
    current_a:
      name: "Outlet 3 Current"
    current_b:
      name: "Outlet 4 Current"
    active_power_a:
      name: "Outlet 3 Power"
    active_power_b:
      name: "Outlet 4 Power"

switch:
  - platform: gpio
    id: relay_0
    name: "Outlet 1"
    pin: GPIO4
    restore_mode: RESTORE_DEFAULT_OFF
    icon: mdi:power-socket-eu

  - platform: gpio
    id: relay_1
    name: "Outlet 2"
    pin: GPIO2
    restore_mode: RESTORE_DEFAULT_OFF
    icon: mdi:power-socket-eu

  - platform: gpio
    id: relay_2
    name: "Outlet 3"
    pin: GPIO3
    restore_mode: RESTORE_DEFAULT_OFF
    icon: mdi:power-socket-eu

  - platform: gpio
    id: relay_3
    name: "Outlet 4"
    pin: GPIO1
    restore_mode: RESTORE_DEFAULT_OFF
    icon: mdi:power-socket-eu

binary_sensor:
  - platform: gpio
    id: button_0
    name: "Button 1"
    pin:
      number: GPIO20
      mode: INPUT_PULLUP
      inverted: true
    on_press:
      - switch.toggle: relay_0

  - platform: gpio
    id: button_1
    name: "Button 2"
    pin:
      number: GPIO22
      mode: INPUT_PULLUP
      inverted: true
    on_press:
      - switch.toggle: relay_1

  - platform: gpio
    id: button_2
    name: "Button 3"
    pin:
      number: GPIO23
      mode: INPUT_PULLUP
      inverted: true
    on_press:
      - switch.toggle: relay_2

  - platform: gpio
    id: button_3
    name: "Button 4"
    pin:
      number: GPIO21
      mode: INPUT_PULLUP
      inverted: true
    on_press:
      - switch.toggle: relay_3

light:
  - platform: esp32_rmt_led_strip
    id: led_strip
    name: "LED Strip"
    pin: GPIO18
    num_leds: 12
    chipset: WS2812
    rgb_order: GRB
    default_transition_length: 0s
    internal: true

  - platform: partition
    id: led_outlet_0
    name: "Outlet 1 LED"
    segments:
      - id: led_strip
        from: 0
        to: 2

  - platform: partition
    id: led_outlet_1
    name: "Outlet 2 LED"
    segments:
      - id: led_strip
        from: 3
        to: 5

  - platform: partition
    id: led_outlet_2
    name: "Outlet 3 LED"
    segments:
      - id: led_strip
        from: 6
        to: 8

  - platform: partition
    id: led_outlet_3
    name: "Outlet 4 LED"
    segments:
      - id: led_strip
        from: 9
        to: 11