1) The module adopts ESP-12S, which is based on ESP8266's low-power UART-WIFI chip module;
2) The main frequency supports 80MHz and 160MHz;
3) Spectrum range: 2412-2484MHZ;
4) Logic voltage: DC 3.3v;
5) USB input voltage: DC 5V;
6) Size: SD-24mm *58.3mm; TF - 24 mm * 45.5 mm;
7) Transmission file name format requirements: only support the file name consisting of ASCII code;
8) TF card memory: 128M.
Scope of application:
Any SD card interface that communicates via SPI can be plugged in and used directly. Such as:
BIGTREETECH SKR series motherboard、GTR motherboard、BIGTREETECH TFT24 V1.1、BIGTREETECH TFT35 V3.0、BIGTREETECH TFT35-E3 V3.0 and so on；
Notic : all SD card interfaces that communicate via SDIO mode cannot be used; For example: BIGTREETECH TFT35 V2.0!!
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