HM30 Q&A
Q1
How to bind the HM30?
Open the menu on the HM30, select Setting, then choose Bind to enter binding mode. On the air unit, pressandhold the bind button; the status indicator will flash red quickly, indicating it has entered binding mode.
Q2
How many power supply methods does the HM30 have?
1. Powered by the rear battery.
2. Can be powered by an external 3-6s battery via an XT30 connector.
2. Can be powered by an external 3-6s battery via an XT30 connector.
Q3
What is the voltage of the optional battery for the HM30?
The fully charged voltage is 8.4V, and the standard voltage is 7.2V.
Q4
Why does the HM30 air unit lack a black module compared to the MK15 air unit?
The voltage regulator module for the HM30 air unit is not a standard accessory. Before use, pay attentiontothe input voltage; it is recommended to use 4S power supply.
Q5
What is the input voltage for the HM30 air unit?
3S-6S / 12.6-25.2V
(HM30 air units shipped since 2024 are fully supported for up to 6S power supply; early devices onlysupport3-4S.)
(HM30 air units shipped since 2024 are fully supported for up to 6S power supply; early devices onlysupport3-4S.)
Q6
Why doesn't the HM30 support UDP telemetry?
Firmware versions below 0.2.2 do not support UDP telemetry.
Q7
What is the UART serial protocol for the HM30?
TTL protocol with a voltage level of 3.3V.
Q8
How many relays can the HM30 connect to simultaneously?
Only one relay can be connected.
Q9
What are the differences between the HM30 and the HM30SE?
The HM30SE does not have a Wi-Fi module, but all other functions are the same.
Q10
What is the link bandwidth of the HM30?
Downlink: 8Mbps; Uplink: 4Mbps; (Measured under near-field conditions without interference)
Q11
How to charge the HM30?
1. A 5V charger cannot charge the ground unit. Please use the original PD fast charger.
2. The ground unit cannot charge the quick-release battery while it is powered on. Ensure the groundunit isturned off before charging.
3. It is recommended to use the NP-F550/750/950 series quick-release batteries.
2. The ground unit cannot charge the quick-release battery while it is powered on. Ensure the groundunit isturned off before charging.
3. It is recommended to use the NP-F550/750/950 series quick-release batteries.
Q12
How many types of telemetry transmission methods does the HM30 support?
Four types: Bluetooth; Type-C; UART; UDP.
Q13
What is the pin definition of the RC interface on the HM30?
Supports external remote control signal inputs: S.bus, PPM, and UART.
Q14
Where can I view the firmware information for the HM30 and the air unit?
You can view the firmware version information in the menu under DEVICE INFO.
Q15
Can the IP address of the HM30 be modified?
No, it cannot.
Q16
Where can I download the configuration software, firmware, and user manual for the HM30?
https://www.siyi.biz/