315 MHz ASK receiver with four independently toggling output pins: each button press alternately sets or clears the corresponding pin. Powered from ~5 VDC; no addressing or error-checking. Differs from the M4 momentary and L4 latching-selector variants.
Receiver supply. Adafruit says to power the receiver with about 5 VDC and warns that anything higher than 6 V can damage it.
Power return for the receiver module supply.
Toggle output controlled by the A button. Adafruit states pressing A activates the first output pin, and on the T4 type repeated presses turn that pin on and off.
Toggle output controlled by the B button. Adafruit states pressing B activates the second output pin, and the T4 receiver toggles matching pins on repeated presses.
Toggle output controlled by the C button. Adafruit describes a one-to-one link between remote buttons and the four receiver output pins.
Toggle output controlled by the D button. Adafruit describes all four buttons each activating a matching receiver pin.
| Pin | Type | Function | Voltage |
|---|---|---|---|
| VCC | Power | Receiver supply. Adafruit says to power the receiver with about 5 VDC and warns that anything higher than 6 V can damage it. | ~5 VDC recommended; do not exceed 6 V per Adafruit product note |
| GND | Ground | Power return for the receiver module supply. | 0 V |
| A output | GPIO | Toggle output controlled by the A button. Adafruit states pressing A activates the first output pin, and on the T4 type repeated presses turn that pin on and off. | logic high when active, low when inactive; module powered at ~5 VDC |
| B output | GPIO | Toggle output controlled by the B button. Adafruit states pressing B activates the second output pin, and the T4 receiver toggles matching pins on repeated presses. | logic high when active, low when inactive; module powered at ~5 VDC |
| C output | GPIO | Toggle output controlled by the C button. Adafruit describes a one-to-one link between remote buttons and the four receiver output pins. | logic high when active, low when inactive; module powered at ~5 VDC |
| D output | GPIO | Toggle output controlled by the D button. Adafruit describes all four buttons each activating a matching receiver pin. | logic high when active, low when inactive; module powered at ~5 VDC |
Receiver supply. Adafruit says to power the receiver with about 5 VDC and warns that anything higher than 6 V can damage it.
Power return for the receiver module supply.
Toggle output controlled by the A button. Adafruit states pressing A activates the first output pin, and on the T4 type repeated presses turn that pin on and off.
Toggle output controlled by the B button. Adafruit states pressing B activates the second output pin, and the T4 receiver toggles matching pins on repeated presses.
Toggle output controlled by the C button. Adafruit describes a one-to-one link between remote buttons and the four receiver output pins.
Toggle output controlled by the D button. Adafruit describes all four buttons each activating a matching receiver pin.
UART · SPI · 3.3 V · Breakout
Verify supply voltage and logic levels before powering up.
Module pins: VCC, GND. Schematik maps them to your board in the app.
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