how do i blink the LED on a tuya openbk plug to show that wifi is connecting

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Direct answer to the question - Assign the LED’s GPIO to the built‑in WiFiLED function in OpenBeken OpenBK. Use WiFiLED for active‑high hardware or WiFiLEDn for active‑low most Tuya plugs. - OpenBeken will then blink that LED automatically while Wi‑Fi is connecting and switch to a steady state once connected. Key points - Find the LED’s GPIO, set its Pin Role to WiFiLED or WiFiLEDn, Save, and Reboot. - If your plug uses a TuyaMCU daughter MCU, also set the Tuya “Wi‑Fi state” so the MCU stops forcing a pairing blink once you’re connected. Detailed problem analysis - Role of WiFiLED: OpenBeken has a small Wi‑Fi state machine. When a GPIO is assigned the WiFiLEDWiFiLEDn role, the firmware drives it with standard patterns: - Connectingassociating: fast blink. - APpairing mode: slow blink. - Connected: steady ON or OFF depending on polarity and any device flags. - Polarity: Many Tuya smart plugs wire indicator LEDs to 3.3 V via a resistor and sink current through the MCU pin, i.e., active‑low. For these, use WiFiLEDn. If you choose the wrong polarity, you’ll see inverted behavior LED ON when it should be OFF, so just swap WiFiLED ↔ WiFiLEDn. - GPIO discovery: Different Tuya plug revisions route LEDs to different pins on the BK7231TN module e.g., P6, P7, etc., not ESP‑style GPIO numbers. Because of this, you must positively identify the LED pin on your specific board. - Devices with TuyaMCU: Some plugs keep a separate Tuya microcontroller that expects a “Wi‑Fi state” from the Wi‑Fi module. If you don’t provide that state, the MCU may keep the LED in “pairing blink.” OpenBeken allows you to define a default Tuya Wi‑Fi state typically state 4 = connected. Doing so hands back solid‑state indication once you’re online. - Shared LEDs: Some plugs have two LEDs e.g., blue = Wi‑Fi, red = relay, others have a single bicolor LED shared between Wi‑Fi and relay functions. If shared, assign the WiFiLED role to the Wi‑Fi indicator pin and the RelayRelayn role to the other. During connection, WiFiLED takes precedence; once connected, relay indication can resume. Current information and trends - Community practice favors using the native WiFiLEDWiFiLEDn Pin Role instead of ad‑hoc scripts; it’s simpler, survives reboots, and tracks firmware updates. - On TuyaMCU‑based devices, setting the Tuya “Wi‑Fi state” to 0x04 connected in startup is a commonly recommended step so the MCU’s own pairing logic doesn’t fight your LED behavior. - There are reports that keeping current OpenBeken builds improves reconnect behavior and LED logic stability after power cycles; update firmware before troubleshooting tricky LED states. Supporting explanations and details - Practical steps recommended UI method: 1 Identify the LED pin: - Web UI > Config > ModulePins. - Temporarily assign a suspected pin the role LED or LEDn, Save, then use the main page or Console to toggle it. When the front‑panel LED responds, you’ve found the right pin and polarity. 2 Assign Wi‑Fi status role: - Change that pin’s role to WiFiLED active‑high or WiFiLEDn active‑low. - Save and Reboot. 3 Verify behavior: - Power the plug with your Wi‑Fi off: LED should slow‑blink AP or fast‑blink connecting. - Enable your 2.4 GHz Wi‑Fi and let it connect: LED should go steady. - Console alternative if you prefer commands: - From the Console, you can set a pin role and save; the exact command names vary slightly by build, but the sequence is typically: - setPinRole WiFiLED or setPinRole WiFiLEDn - save - reboot - TuyaMCU note only if your plug uses TuyaMCU: - Add to startup autoexec a default MCU Wi‑Fi state so the MCU’s own LED logic agrees with OpenBeken: - tuyaMcudefWiFiState 4 - This prevents the MCU from keeping the LED in “pairing” blink when you’re already connected locally. Ethical and legal aspects - Mains safety: Tuya plugs are line‑powered at 120230 VAC. Do not open the enclosure while powered. Any probing of pins should be done only when the board is isolated and you are qualified to work on mains‑connected hardware. - RF compliance: Blinking LEDs are user‑visible only; they don’t affect RF compliance, but ensure your modifications don’t defeat required status indications if the device is used in regulated environments. Practical guidelines - Best practices: - Use WiFiLEDWiFiLEDn; avoid custom blink scripts for basic “connecting” indication. - Keep firmware current before troubleshooting LED logic. - If the LED seems inverted, switch between WiFiLED and WiFiLEDn—don’t add inversion scripts. - For single‑LED designs that must indicate both Wi‑Fi and relay, let WiFiLED control while connecting and the relay role control after connection. - Common pitfalls and fixes: - LED never changes: wrong pin; try a different pin. - LED behavior inverted: use the “n” inverted version of the role. - LED stuck blinking on TuyaMCU devices: set tuyaMcudefWiFiState 4 in startup. Possible disclaimers or additional notes - Role names and minor behavior details can vary slightly across OpenBeken builds. If you don’t see WiFiLEDWiFiLEDn, update your firmware. - Some OEM boards tie the LED to the relay transistor; in that case you cannot get a pure Wi‑Fi indicator without a hardware mod. Suggestions for further research - Check your exact OpenBeken build’s commandroles reference for any naming differences. - Look up community device teardowns of your exact plug modelrevision to find confirmed pin maps. - If you have a TuyaMCU device, review OpenBeken’s TuyaMCU notes for Wi‑Fi state handling. Brief summary - Use OpenBeken’s built‑in WiFiLED or WiFiLEDn Pin Role on the LED’s GPIO. Save and reboot. The LED will blink while Wi‑Fi is connecting and go steady when connected. On TuyaMCU‑based plugs, also set tuyaMcudefWiFiState 4 at startup so the MCU’s own logic aligns with OpenBeken. If the LED behavior is inverted, switch between WiFiLED and WiFiLEDn.

Tuya OpenBeken Plug: Blink LED for WiFi Connecting Using WiFiLED or WiFiLED_n

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