RTU5024 user manual
Everything you need to install, configure, and troubleshoot the RTU5024 GSM gate opener module — including the default password, every SMS command, the wiring diagram, and the original manufacturer PDF.
At a glance: The RTU5024 is a GSM gate opener module manufactured by King Pigeon / BLIIoT / Huobei. The default password is 1234. It supports up to 999 authorized phone numbers across 1 relay output and runs on DC 9-36V. Commands are sent over SMS using the RTU5024 protocol.
Download the official PDF manual
The original King Pigeon / BLIIoT / Huobei factory manual in PDF form:
Download RTU5024 manual (PDF)If the PDF is missing diagrams or your hardware shipped with a different version, please let me know and I will add the alternative version.
Hardware specifications
| Default password | 1234 |
|---|---|
| Maximum authorized users | 999 |
| Relay outputs | 1 |
| Protocol family | RTU5024 |
| Power supply | DC 9-36V |
| SIM card type | Standard SIM |
| Relay rating | 3A / 240VAC |
| Operating temperature | -10 to +60 C |
| Dimensions | 88 x 62 x 25 mm |
These are the manufacturer's published values. The same hardware is sold under several brand names — if your unit shows a different sticker, the protocol and command set are still identical. Also known as: RTU5024, RTU5024 4G, RTU5024 V2.
First-time setup checklist
Before sending any SMS commands, work through this list. Skipping a step accounts for most of the support emails I receive.
- Insert a working SIM card into a regular phone. Confirm voice and SMS work. Disable the SIM PIN.
- Insert the SIM into the RTU5024. Connect DC 9-36V.
- Wait for the signal LED to blink slowly (network registered). This takes 30-90 seconds on first power-up.
- From an authorized phone, send the change-password command to replace the default
1234with your own. - Add yourself as the first authorized user. Confirm by calling the SIM number — the gate should pulse.
- Wire the relay output to your gate motor's trigger input (typically labelled "ON", "MAN", "OPEN").
The detailed setup walkthrough with example SMS commands is in the RTU5024 setup guide.
SMS command reference
Every command for the RTU5024, copy-pasteable. Replace {pwd} with your own password. The full annotated reference with response examples is on /hardware/rtu5024/commands/.
Initialize (REQUIRED first step)
Register the module's SIM card number. This is the FIRST command you must send. Use 00 prefix instead of +.
{pwd}TEL{moduleSIM}#1234TEL00861351015#Sync clock
Set the module's internal clock. Required for time-limited users to work correctly.
{pwd}T{YYMMDDHHmm}#1234T2603291530#Change password
Change device password to new 4-digit password.
{pwd}P{newpwd}1234P6666Add permanent user
Add authorized user to slot (001-200). Always allowed to call and control.
{pwd}A{slot}#{phone}#1234A003#123456#Add time-limited user
Add user with access limited to a date/time range. Clock must be synced first.
{pwd}A{slot}#{phone}#{startYYMMDDHHmm}#{endYYMMDDHHmm}#1234A016#123456#1502050800#1502051000#Query user by slot
Check which phone number is stored at a position.
{pwd}A{slot}#1234A002#Batch query users
Query authorized numbers from slot range. Returns multiple SMS (10 numbers per SMS).
{pwd}AL{slotStart}#{slotEnd}#1234AL002#050#Delete user
Remove authorized number at position (or overwrite with new number).
{pwd}A{slot}##1234A002##Allow all callers
Allow any phone number to trigger the relay. WARNING: free access for anyone.
{pwd}ALL#1234ALL#Authorized users only (default)
Only authorized numbers can trigger the relay. Recommended setting.
{pwd}AUT#1234AUT#Troubleshooting
If a command returns Error password, double-check that you are sending the command from an authorized phone using exactly the syntax above. The RTU5024 firmware is strict about case, spacing, and the # delimiters. Common causes:
- Sending from a number that is not on the authorized list (call the gate first to test).
- Old password still cached after a factory reset. The post-reset default reverts to
1234. - Lowercase command keywords. RTU5024 commands are uppercase.
- Extra spaces or autocorrect inserted by your phone keyboard. Disable predictive text for the gate's SIM number.
The full troubleshooting guide with diagnostic SMS commands and signal-strength checks lives at rtu5024-troubleshooting.
Skip the SMS commands entirely
The whole reason this site exists is that nobody enjoys typing SMS commands like {pwd}#TEL+31612345678#001# from memory. GateOpener gives you buttons, forms, and confirmation screens — same hardware, clean interface.