# Latest **URL:** https://rx480e.discourse.group/latest.md [Latest](https://rx480e.discourse.group/latest.md) · [Categories](https://rx480e.discourse.group/categories.md) --- ## [Welcome to Forum for the RX480E Module! 👋](https://rx480e.discourse.group/t/welcome-to-forum-for-the-rx480e-module/5)
**Author:** [@system](https://rx480e.discourse.group/u/system)\ **Replies:** 0\ **Last updated:** [May 19, 2026, 10:04am UTC](https://rx480e.discourse.group/t/welcome-to-forum-for-the-rx480e-module/5 "2026-05-19T10:04:03Z")
We are so glad you joined us. Forum for the RX480E Module You can discuss anything related to the RX480E module. Here are some things you can do to get started: :speaking\_head: Introduce yourself by adding your pict… --- ## [How Can I Add Another Transmitter Without Opening My RX480E Box?](https://rx480e.discourse.group/t/how-can-i-add-another-transmitter-without-opening-my-rx480e-box/27)
**Author:** [@Zercher](https://rx480e.discourse.group/u/Zercher)\ **Replies:** 7\ **Last updated:** [November 3, 2026, 6:45am UTC](https://rx480e.discourse.group/t/how-can-i-add-another-transmitter-without-opening-my-rx480e-box/27 "2026-11-03T06:45:06Z")
I had a thought: suppose I have a transmitter paired with an RX480E receiver, and the receiver is already tucked inside a box. Everything works. Now I want a second transmitter to control the same setup. What is the sim… --- ## [Why Can't I Change RX480E ( RX480E-4 RX480E-4C ) Modes After Adding an External LED to VT?](https://rx480e.discourse.group/t/why-cant-i-change-rx480e-rx480e-4-rx480e-4c-modes-after-adding-an-external-led-to-vt/32)
**Author:** [@Zercher](https://rx480e.discourse.group/u/Zercher)\ **Replies:** 1\ **Last updated:** [November 2, 2026, 9:58am UTC](https://rx480e.discourse.group/t/why-cant-i-change-rx480e-rx480e-4-rx480e-4c-modes-after-adding-an-external-led-to-vt/32 "2026-11-02T09:58:54Z")
If mode selection stops working after you add an external button and LED to RX480E ( RX480E-4 RX480E-4C )'s VT connection, check that new wiring first. The manual identifies VT as the external key input. Its FAQ gives a… --- ## [Why Is There No Learning Button on the RX480E-1A Receiver?](https://rx480e.discourse.group/t/why-is-there-no-learning-button-on-the-rx480e-1a-receiver/38)
**Author:** [@Zercher](https://rx480e.discourse.group/u/Zercher)\ **Replies:** 0\ **Last updated:** [November 2, 2026, 6:04am UTC](https://rx480e.discourse.group/t/why-is-there-no-learning-button-on-the-rx480e-1a-receiver/38 "2026-11-02T06:04:35Z")
You unpack your new RX480E-1A, expecting the familiar tiny button found on standard RX480E boards, but the surface is completely bare. You might think the factory missed a component or that the board is defective. 1… --- ## [How to Pair a Remote with RX480E ( RX480E-4 RX480E-4C ) and Set the Working Mode](https://rx480e.discourse.group/t/how-to-pair-a-remote-with-rx480e-rx480e-4-rx480e-4c-and-set-the-working-mode/33)
**Author:** [@Zercher](https://rx480e.discourse.group/u/Zercher)\ **Replies:** 1\ **Last updated:** [October 29, 2026, 9:08am UTC](https://rx480e.discourse.group/t/how-to-pair-a-remote-with-rx480e-rx480e-4-rx480e-4c-and-set-the-working-mode/33 "2026-10-29T09:08:33Z")
On RX480E ( RX480E-4 RX480E-4C ), pairing a remote and choosing a working mode are the same action. The learning button has no separate mode menu. The number of presses decides the mode: one press for momentary, two pre… --- ## [Which Working Mode Should I Choose for RX480E ( RX480E-4 RX480E-4C ): Momentary or Toggle?](https://rx480e.discourse.group/t/which-working-mode-should-i-choose-for-rx480e-rx480e-4-rx480e-4c-momentary-or-toggle/34)
**Author:** [@Zercher](https://rx480e.discourse.group/u/Zercher)\ **Replies:** 1\ **Last updated:** [October 29, 2026, 8:38am UTC](https://rx480e.discourse.group/t/which-working-mode-should-i-choose-for-rx480e-rx480e-4-rx480e-4c-momentary-or-toggle/34 "2026-10-29T08:38:03Z")
Choose the mode for RX480E ( RX480E-4 RX480E-4C ) by what should happen when you let go of the button. Momentary holds the output only while you press the button. Release it, and the output returns to its off state. Tha… --- ## [Why Can't I Find the Learning Button on RX480E-1A?](https://rx480e.discourse.group/t/why-cant-i-find-the-learning-button-on-rx480e-1a/35)
**Author:** [@Zercher](https://rx480e.discourse.group/u/Zercher)\ **Replies:** 0\ **Last updated:** [October 28, 2026, 9:54am UTC](https://rx480e.discourse.group/t/why-cant-i-find-the-learning-button-on-rx480e-1a/35 "2026-10-28T09:54:43Z")
Can’t find the Learning button on RX480E-1A? You haven’t missed a tiny switch—there isn’t one on the board. Look for the KEY pin instead, marked 6 in the diagram below. Connect an external switch or button to that input… --- ## [Why is not connecting?](https://rx480e.discourse.group/t/why-is-not-connecting/20)
**Author:** [@Edu\_Lubian](https://rx480e.discourse.group/u/Edu_Lubian)\ **Replies:** 5\ **Last updated:** [October 27, 2026, 6:39am UTC](https://rx480e.discourse.group/t/why-is-not-connecting/20 "2026-10-27T06:39:57Z")
I bought a RX480E dual chip 433mhz version, but I’m following all steps and it’s not connecting my controller. Am I doing something wrong? Test --- ## [From a Signal Pin to a Real Device](https://rx480e.discourse.group/t/from-a-signal-pin-to-a-real-device/16)
**Author:** [@Zercher](https://rx480e.discourse.group/u/Zercher)\ **Replies:** 1\ **Last updated:** [October 26, 2026, 9:58am UTC](https://rx480e.discourse.group/t/from-a-signal-pin-to-a-real-device/16 "2026-10-26T09:58:50Z")
Short answer first An LED or Arduino input can connect to RX480E OUT directly. A relay, lamp, motor, lock, or pump cannot connect to RX480E OUT directly. Why? RX480E OUT is a signal pin. It is not a power output. What… --- ## [Can Any 433 MHz Remote Pair with RX480E ( RX480E-4 RX480E-4C )?](https://rx480e.discourse.group/t/can-any-433-mhz-remote-pair-with-rx480e-rx480e-4-rx480e-4c/31)
**Author:** [@Zercher](https://rx480e.discourse.group/u/Zercher)\ **Replies:** 0\ **Last updated:** [October 26, 2026, 9:53am UTC](https://rx480e.discourse.group/t/can-any-433-mhz-remote-pair-with-rx480e-rx480e-4-rx480e-4c/31 "2026-10-26T09:53:15Z")
If you have a spare remote marked 433 MHz, check its encoding before trying it with RX480E ( RX480E-4 RX480E-4C ). The RX480E ( RX480E-4 RX480E-4C ) manual specifies 433.92 MHz and EV1527 learning code. Pairing depends … --- ## [Why Does an Unpatchable Router Flaw Matter to a 433 MHz Remote?](https://rx480e.discourse.group/t/why-does-an-unpatchable-router-flaw-matter-to-a-433-mhz-remote/30)
**Author:** [@Zercher](https://rx480e.discourse.group/u/Zercher)\ **Replies:** 0\ **Last updated:** [October 23, 2026, 9:40am UTC](https://rx480e.discourse.group/t/why-does-an-unpatchable-router-flaw-matter-to-a-433-mhz-remote/30 "2026-10-23T09:40:50Z")
The router in your hallway may never get a fix. On October 16, researcher Quentin Kaiser disclosed a flaw in Broadcom’s Wi-Fi Protected Setup code. An attacker in radio range can run code as root on affected routers … --- ## [Why Does My Relay Trigger in Reverse on RX480E-4?](https://rx480e.discourse.group/t/why-does-my-relay-trigger-in-reverse-on-rx480e-4/29)
**Author:** [@Zercher](https://rx480e.discourse.group/u/Zercher)\ **Replies:** 0\ **Last updated:** [October 23, 2026, 8:48am UTC](https://rx480e.discourse.group/t/why-does-my-relay-trigger-in-reverse-on-rx480e-4/29 "2026-10-23T08:48:55Z")
You connect an RX480E-4 to a relay module. The relay turns on right away—before you even touch the remote. When you press the button, it shuts off. You might think the receiver is broken. Actually, nothing is wrong wi… --- ## [How to Connect Your WiFi Ceiling Fan Light and Turn Off the Beep](https://rx480e.discourse.group/t/how-to-connect-your-wifi-ceiling-fan-light-and-turn-off-the-beep/28)
**Author:** [@Zercher](https://rx480e.discourse.group/u/Zercher)\ **Replies:** 0\ **Last updated:** [October 23, 2026, 3:47am UTC](https://rx480e.discourse.group/t/how-to-connect-your-wifi-ceiling-fan-light-and-turn-off-the-beep/28 "2026-10-23T03:47:58Z")
If your QIACHIP WiFi ceiling fan light will not connect to the Smart Life app—or you simply want to turn off the confirmation beep—this short video walks through both fixes step by step. It covers the required 2.4 GHz W… --- ## [Does RX480E Need Pairing Again After a Long Power Outage?](https://rx480e.discourse.group/t/does-rx480e-need-pairing-again-after-a-long-power-outage/26)
**Author:** [@Zercher](https://rx480e.discourse.group/u/Zercher)\ **Replies:** 0\ **Last updated:** [October 22, 2026, 8:05am UTC](https://rx480e.discourse.group/t/does-rx480e-need-pairing-again-after-a-long-power-outage/26 "2026-10-22T08:05:41Z")
A customer asked whether a long power outage means pairing the transmitter and receiver all over again. No. Once paired, RX480E-4 and RX480E-4C keep their pairing after a power outage. You do not need to repeat the Lea… --- ## [What PHP2Shell Made Me Think About My 433 MHz Remote](https://rx480e.discourse.group/t/what-php2shell-made-me-think-about-my-433-mhz-remote/25)
**Author:** [@Zercher](https://rx480e.discourse.group/u/Zercher)\ **Replies:** 0\ **Last updated:** [October 22, 2026, 6:38am UTC](https://rx480e.discourse.group/t/what-php2shell-made-me-think-about-my-433-mhz-remote/25 "2026-10-22T06:38:10Z")
These past few days, it feels like every other headline has been another vulnerability, and every other website has been rushing to patch. PHP2Shell was the one that caught my eye, with PHP telling server administrators … --- ## [Can the RX480E Run on 12V?](https://rx480e.discourse.group/t/can-the-rx480e-run-on-12v/23)
**Author:** [@Zercher](https://rx480e.discourse.group/u/Zercher)\ **Replies:** 0\ **Last updated:** [October 21, 2026, 9:54am UTC](https://rx480e.discourse.group/t/can-the-rx480e-run-on-12v/23 "2026-10-21T09:54:33Z")
A customer recently told us that an unstable 5 V battery supply had already burned out four RX480E-4 receivers. He asked whether the board could tolerate 12 V instead. It cannot. The 433.92 MHz RX480E-4 is rated for … --- ## [Can Each RX480E-4 Output Pin Use a Different Mode?](https://rx480e.discourse.group/t/can-each-rx480e-4-output-pin-use-a-different-mode/22)
**Author:** [@Zercher](https://rx480e.discourse.group/u/Zercher)\ **Replies:** 0\ **Last updated:** [October 21, 2026, 9:37am UTC](https://rx480e.discourse.group/t/can-each-rx480e-4-output-pin-use-a-different-mode/22 "2026-10-21T09:37:31Z")
We collected this question from a customer: Can D2 be Toggle while D3 stays Momentary? No. RX480E-4 does not provide a separate mode setting for each output pin. You select one working mode for the receiver, and some… --- ## [RX480E-4C: The LED Blinks, but Why Do D0-D3 Show No Output?](https://rx480e.discourse.group/t/rx480e-4c-the-led-blinks-but-why-do-d0-d3-show-no-output/21)
**Author:** [@Zercher](https://rx480e.discourse.group/u/Zercher)\ **Replies:** 0\ **Last updated:** [October 21, 2026, 8:41am UTC](https://rx480e.discourse.group/t/rx480e-4c-the-led-blinks-but-why-do-d0-d3-show-no-output/21 "2026-10-21T08:41:08Z")
Hello! My remote works and the LED is blinking when remote button is pressed. But no matter which mode I’m in, no power I being emitted through D0-D3? I keep seeing the same comment: the remote works and the receive… --- ## [How many controllers RX480 supports?](https://rx480e.discourse.group/t/how-many-controllers-rx480-supports/19)
**Author:** [@Edu\_Lubian](https://rx480e.discourse.group/u/Edu_Lubian)\ **Replies:** 4\ **Last updated:** [August 13, 2026, 9:25am UTC](https://rx480e.discourse.group/t/how-many-controllers-rx480-supports/19 "2026-08-13T09:25:23Z")
Hi there! I haven’t found this information, how many different controller or transmissors RX480E-4 can memorize? What happens if it already learned some TX code, and I push the button again? I really wanna know, somebo… --- ## [RX480E 433MHz 4 channel RF receiver module with deconding DC3V DC5V by QIACHIP | User guide and Test](https://rx480e.discourse.group/t/rx480e-433mhz-4-channel-rf-receiver-module-with-deconding-dc3v-dc5v-by-qiachip-user-guide-and-test/18)
**Author:** [@Zercher](https://rx480e.discourse.group/u/Zercher)\ **Replies:** 0\ **Last updated:** [June 30, 2026, 6:08am UTC](https://rx480e.discourse.group/t/rx480e-433mhz-4-channel-rf-receiver-module-with-deconding-dc3v-dc5v-by-qiachip-user-guide-and-test/18 "2026-06-30T06:08:55Z")
RX480E 433MHz 4 channel RF receiver module with deconding DC3V DC5V by QIACHIP | User guide and Test --- ## [How to Get Help Fast](https://rx480e.discourse.group/t/how-to-get-help-fast/17)
**Author:** [@Zercher](https://rx480e.discourse.group/u/Zercher)\ **Replies:** 0\ **Last updated:** [June 30, 2026, 3:34am UTC](https://rx480e.discourse.group/t/how-to-get-help-fast/17 "2026-06-30T03:34:46Z")
Two ways to get help. 1. Post your question Start a new topic in this section. Do not worry about the right technical words. Start with what you already have: Product link: the RX480E product you bought, or the one y… --- ## [Which RX480E Model Should I Choose?](https://rx480e.discourse.group/t/which-rx480e-model-should-i-choose/15)
**Author:** [@Zercher](https://rx480e.discourse.group/u/Zercher)\ **Replies:** 0\ **Last updated:** [June 25, 2026, 9:08am UTC](https://rx480e.discourse.group/t/which-rx480e-model-should-i-choose/15 "2026-06-25T09:08:48Z")
Most RX480E mistakes start before wiring. They start when a project is described only as: I need an RX480E. That is not enough yet. Before choosing a model, first write down what should happen after the remote b…