π‘
ML307R-DL 4G Module
Cheap 4G Cat.1
Page 60 drives the ML307R-DL (4G Cat.1): signal, registration, APN and IP, plus TCP/MQTT and SMS. Its AT set is similar to the Air780E but not identical, so the raw echo stays visible for comparison.
β It wants 3.4β4.2 V, not 3V3, and shares UART 43/44 with pages 19/32/34.
Screen
On-screen interface
A recreation of this page on the 2.41-inch AMOLED display (600 Γ 450). Actual interaction and layout follow the latest firmware.
Signal-71dBm Β· good
Networkregistered Β· CHN-UNICOM
APN / IP3gnet Β· 10.42.7.19
Supply3.4β4.2 V Β· own supply
Health88
Shares 43/44 with p.19/32/34 β one at a time
Screen Β· Page 60
May differ from the actual interface; the screen of the real device is the final reference.
Highlights
Key capabilities
π‘
4G Cat.1
10 Mbps down / 5 Mbps up.
π
Own supply
3.4β4.2 V through a regulator.
π§Ύ
Raw echo
Every AT reply is visible line by line.
π©Ί
Health score
No registration, no SIM and brownout separated.
Specifications
Technical specs
Network4G Cat.1 (China Mobile / Unicom / Telecom)
UART43 (TX) / 44 (RX), exclusive with pages 19/32/34
Supply3.4β4.2 V, 500 mA peak
Firmware pagePage 60
Use Cases
Typical scenarios
Remote reporting
Send data from a site without WiFi.
Fallback link
Switch to cellular when WiFi drops.
Commands
Related commands
page 60 Open the ML307R page cell Read signal and registration
β Boundaries & notes
- Exclusive with pages 19/32/34 β one owner of the 43/44 UART.
- 3.4β4.2 V only; 3V3 browns it out.
Other feature pages
π Overview Home12-tile quick launch plus everyday toggles β the power-on default, and where everything starts.β‘Dashboard Β· Power & ConsumptionBLE-connected current meter with live voltage/current/power curves at fixed-point 10βΆ precision.πWaveform PanelLive curves for frame rate, heap and task load β spot the bottleneck at a glance.π΅BLE DebuggerBLE scan/connect/service discovery with full GATT tree browsing and read/write.