🎛
SYN480R 433 Receiver
Copy what is in the air
Page 58 captures the SYN480R demodulated output on GPIO39 with an edge interrupt, measures pulse widths and decodes EV1527 / PT2262 frames, showing the code and repeat count.
When nothing decodes, the screen distinguishes "pulses but no decode" from "no pulses at all", which tells you whether it is an antenna problem or an unknown format.
Screen
On-screen interface
A recreation of this page on the 2.41-inch AMOLED display (600 × 450). Actual interaction and layout follow the latest firmware.
Received2frames · last 21:05
Code0x5D20A7（EV1527）
Pulse320 / 960 µs
Signalmedium · stable decode
Health90
Pulses but no decode = wrong format
Screen · Page 58
May differ from the actual interface; the screen of the real device is the final reference.
Highlights
Key capabilities
🎛
Auto decode
EV1527 / PT2262 recognised automatically.
📜
Recent codes
Keeps the last few frames.
📶
Signal hint
Pulse density gives a rough distance cue.
🩺
Typed diagnosis
No pulses vs undecodable pulses.
Specifications
Technical specs
PinGPIO 39 (interrupt)
Frequency433.92 MHz
Sensitivity-108 dBm
Firmware pagePage 58
Use Cases
Typical scenarios
Learn a remote
Press the original and copy the code.
Presence check
Is any 433 device transmitting nearby?
Commands
Related commands
page 58 Open the SYN480R page rx Show recently decoded codes
⚠ Boundaries & notes
- Only common open formats; rolling codes stay undecoded.
- Several 433 devices at once interfere — ask others to stop pressing.
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