T-Echo Meshtastic Frequency:433MHz BME280 2 Onboard Buttons RESET WS2812

2 Onboard Buttons RESET WS2812 RGB LED Data IO25

T-Beam Helium

Micropython Flash 16MB PSRAM 8MB Antenna Ceramic (Default) Onboard functions Boot + Reset + Power Button FPGA Chip GW1NSR-LV4CQN48PC6/15 Device GW1NSR-4C Package QFN48P Speed C6/15 LUT4 4608 Flash 256K HyperRAM 64Mb Hardcore processor Cortex-M3 Development Development Designer Debug port JTAG

It has six programmable input/output IO ports on the back

T-Echo Meshtastic Frequency:433MHz BME280 2 Onboard Buttons RESET WS2812FCC, CE, MIC certificates for T Echo Specification MCU NRF52840 FLASH 2MB RAM 2MB Bus Interfaces UART, SPI, TWI, PDM, 12S, QSPI Wireless Connectivity Bluetooth 5, Thread, Bluetooth Mesh, ANT, 802. 15. 4, Zigbee With Without BME280 temperature pressure sensor SX1262 LoRa Transceiver Long Range, Low Power Global frequency coverage 433, 868, 915Mhz Enclosure material ABS Version Normal version BME280 version Battry Capacity 850mAh 1. 54 inch SPI E Paper