ESP32 Servo Driver Expansion Board, Built-In WiFi and Bluetooth 2.4 INCHES Environmental friendly:

Environmental friendly:

3V Input Voltage (limit) 21V DC Current per I/O Pin 15 mA Clock Speed 64MHz CPU Flash Memory 1MB (nRF52840) SRAM 256KB (nRF52840) EEPROM none Digital Input / Output Pins 14 PWM Pins all digital pins UART 1 SPI 1 I2C 1 Analog Input Pins 8 (ADC 12 bit 200 ksamples) Analog Output Pins Only through PWM (no DAC) External Interrupts all digital pins LED_BUILTIN 13 USB Native in the nRF52840 Processor Length 45 mm Width 18 mm Weight 5 gr (with headers)

Since LoRa-E5 is a LoRaWAN chip with an MCU

Tinned copper wire

and the high level of the sealed container

ESP32 Servo Driver Expansion Board, Built-In WiFi and Bluetooth 2.4 INCHES Environmental friendly:ESP32 Servo Driver Expansion Board Dedicated Driver Board Designed For Serial Bus Servos Allows controlling up to 253 servos via the ESP32 serial port, with open source bottom layer and web application, as well as open source hexapod walker and humanoid robot structures, ideal to be used as the main controller while building robotics projects. Features: Allows controlling up to 253 SC, ST series serial bus servos at the same time (adequate power