Technical summary
The 868MHz antenna must be connected to the IPEX interface (if the antenna is not connected, signal reception will be unstable)
Lithium battery charge and discharge circuit: when the battery is full, the blue LED will stop working. During use, please pay attention to the positive and negative terminals of the battery, otherwise it will be damaged!
With the touch screen on the IO port for touch signal input, you must add a 100nF pull-down capacitor to this pin!
Features:
This product is an ESP32 WIFI OLED board based on the SX1276 chip, namely a long-range LoRa modem, 868MHz frequency, high sensitivity is sur-148dBm, +20dBm output power, high reliability, long transmission distance.
the board carries 4mt (32 bits Mt) of memory, a wi-fi antenna, a 0.96 inch OLED display, the lithium battery charging circuit, the CP2102 USB serial interface chip, ideal support for the Arduino development environment; it can be used for program verification and product development is very easy and fast.
Supply voltage: 3.3V to 7V
Operating temperature range: -40°C to +90°C
Supports Sniffer software protocol analysis, Station, SoftAP and Wi-Fi modes
Data rates: 150 Mbps @ 11n HT40, 72 Mbps @ 11n HT20, 54 Mbps @ 11g, 11 Mbps @ 11b
Transmit power: 19.5 dBm @ 11b, 16.5 dBm @ 11g, 15.5 dBm @ 11n
Receiver sensitivity down to -98 dBm
Sustained UDP throughput of 135 Mbps
