This ESP32-S3-based development board from Waveshare comes with a square 4" LCD display on its rear, along with 7-36V wide input power range and a host of additional features and interface options. The board is controlled by an ESP32-S3 (ESP32-S3N16R8) module providing 2.4GHz WiFi and BLE 5, supported with built-in 512KB SRAM and 384KB ROM, with additional 16MB flash and 8MB PSRAM. The display is a 4" square IPS LCD panel with a 480x480 resolution, 65k colours and 160° viewing angles. This version does not offer a touch interface - you'll want to check out the touchscreen version for that. The dev board also features CAN, RS485 and I2C interfaces, all available via a terminal block connection for quick, simple wiring. A microSD slot is also available for storage. The onboard RTC includes a battery header compatible with the Raspberry Pi RTC battery. The board can be powered via terminal block with a wide 7-36V input voltage, or via USB-C, which is also used for programming. There is also a PH2.0 connector for LiPo batteries, including a charge circuit. BOOT, RESET and power buttons offer physical interfaces for control and software installation, along with LEDs for power indication. What's Onboard? Please note, the image below shows the touch version with a bezel. This non-touch version does not have the same bezel. * ESP32-S3N16R8 * SoC with Wi-Fi and Bluetooth, operating up to 240MHz * Integrated 8MB PSRAM and 16MB Flash * SW6106 * Battery charging and discharging management chip * TJA1051T/3/1J * CAN bus transceiver * SP3485 * RS485 transceiver * PCF85063 * RTC (real-time clock) chip * TCA9554PWR * I/O expansion chip * XL1509-ADJE1 power chip * Supports 7–36V DC power input * 3.5mm 10-pin screw terminal slot * For installing a 3.5mm 10-pin screw terminal block * RTC battery header * For connecting a rechargeable RTC battery * Only supports rechargeable RTC batteries * USB-C port * ESP32-S3 USB interface for power, firmware flashing and log output * TF card slot * PH2.0 lithium battery header * PH2.0 2-pin connector for 3.7V lithium batteries * Supports battery charging and discharging * Buzzer * Audio output peripheral * RS485 and CAN terminal resistor selection * Disabled by default * Power indicator LED * BOOT button * RESET button * PWRKEY button * Power on/off button when operating from battery power Features * ESP32-S3 microcontroller with dual-core Xtensa® LX7 processor, up to 240MHz * 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE) with onboard antenna * 16MB Flash and 8MB PSRAM, plus 512KB SRAM and 384KB ROM * 4" LCD display with 480x480 resolution and 65K colours (non-touch) * CAN bus interface with onboard TJA1051T transceiver * RS485 interface with onboard SP3485 transceiver * I2C interface and GPIO expansion via TCA9554PWR * MicroSD card slot for external storage * USB-C port for power, firmware flashing and serial logs * PH2.0 lithium battery connector with charge and discharge support * RTC with PCF85063 chip and rechargeable RTC battery header * Wide 7–36V DC input via onboard power management * Onboard buzzer and power indicator LED * BOOT, RESET and power buttons * Low-power operation with flexible clock and power management settings Resources * Product wiki Package Contents * 1x ESP32-S3 Dev Board with 4" IPS Display (480x480) * 1x Rear-wiring 10-pin terminal block * 1x Bottom wiring 10-pin terminal block