TWELITE SPOT Overview
How to initialize the ESP32?
Please refer to How to initialize the ESP32 firmware.
How to initialize the TWELITE?
Please refer to How to initialize the TWELITE firmware.
How to set the TWELITE frequency channel and application ID?
You need to send commands via serial communication from the ESP32. In the Arduino environment, use Twelite.begin()
.
How to remotely display received data as graphs?
As an example, please see the sample sketch using MathWorks’ ThingSpeak Explanation of spot-thingspeak.
What security measures can be taken when connecting via Wi-Fi?
In Arduino sketches, you can specify the target security standard using WiFi.setMinSecurity()
.
Below is an example for using only networks secured with WPA3 or higher.
WiFi.mode(WIFI_STA);
WiFi.setAutoReconnect(true);
WiFi.setMinSecurity(WIFI_AUTH_WPA3_PSK);
WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
References
- Wi-Fi API — Arduino-ESP32 2.0.6 documentation
- arduino-esp32/docs/source/troubleshooting.rst at master · espressif/arduino-esp32 · GitHub
How to check the TWELITE serial number?
Please check the number printed on the device.

Location of the serial number
Hardware
What are the specifications of the pin sockets?
They are for 0.64mm square pin headers, with a height of 5mm. Pin headers with exposed parts longer than 5mm may wobble slightly.
2212SM-07G-50-BX
is used.