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ESP32 OLED Module, WiFi, Bluetooth Dual ESP-32 ESP-32S ESP8266 (ESP32 with OLED display)
An entire solution on the least amount of PCB area. This board is a 2.4 GHz dual mode WiFi and bluetooth chip by tsmc 40nm low power technology, power and optimized RF characteristics for a wide range of applications.
DS18B20 Temperature Sensor TO-92 (DS18B20 Temperature Sensor)
Temperature measurement range: -55°C ~ +125°C
WS 4G / 3G / 2G / GSM / GPRS / GNSS HAT for Raspberry Pi, LTE CAT4 (4G Hat)
The SIM7600E-H 4G HAT is a 4G/3G/2G communication and GNSS positioning module, which supports LTE CAT4 up to 150Mbps for downlink data transfer. it is pretty low power consumption.
ESP32-CAM WiFi Module ESP32 serial Development Board 5V Bluetooth with OV3660 Camera Module 2MB PSRAM (ESP32 CAM)
The ESP32-CAM is a small size, low power consumption camera module based on ESP32. It comes with an OV3660 camera and provides onboard TF card slot.
SONOFF® Micro Smart USB-A switch (Sonoff MICRO USB)
Sonoff Smart USB adapter with 5V input and output makes your USB devices smart which opens your devices up to many new capabilities, for example turning your gadgets on/off with voice control or even automatically using schedules.