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- Manuals
- 1
- Languages
- ZH
- Last added
- 2026-10-03
Featured Yinerda manuals
Yinerda Air202GprsDTU User Manual
The Air202GprsDTU manual provides detailed information for embedded, development and test engineers on the hardware specifications, pin definitions, and mechanical dimensions of the module. It also describes recommended power supply conditions and operating temperature ranges.
The guide walks users through hardware connections (TTL UART, RS485, SIM card), required tools, the standard internet connection flow, firmware upgrade procedures, AT‑command testing, secondary development resources, and configuration of the standard DTU firmware for network communication. This manual is written in Chinese.
Covers: Hardware Introduction · Hardware Specifications · Hardware Pin Definition · Hardware Dimensions · Hardware Connections · TTL UART Connection
Latest Yinerda manuals
Yinerda Air202GprsDTU User Manual
User Manual 21 pages · 3.8 MB · ZHUser manual for the Yinerda Air202GprsDTU module covering hardware, connections, firmware upgrade and AT command usage.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in Yinerda manuals
What power supply voltage and current does the Air202GprsDTU module need?
It requires a 5 V to 12 V supply capable of delivering at least 1.6 A; a stable 2 A source is recommended.
How can I check the network signal quality of the module?
Send the AT+CSQ command; a returned value between 17 and 31 indicates acceptable signal quality for stable operation.