T-Relay-8 – An ESP32 board with 8 relays

8x Relay ESP32 board

LilyGo T-Relay-8 is an ESP32 WiFi & BLE board equipped with eight 5V relays supporting up to 250V AC or 28V DC, as well as 16-pin GPIO header for expansion. The board offers a more compact solution than the usual two-board setups with an ESP32 board and a separate 8-relay “Arduino” module, and also integrates optocouplers for improved safety. LilyGo T-Relay-8 specifications: Wireless module – ESP32-WROVER-E module with ESP32 dual-core processor with 2.4 GHz WiFi 4 and Bluetooth 4.2 connectivity, 4MB flash, 8MB PSRAM Relays – 8x HRS4H-S-DC5V 5V relays up to 250VAC/10A or 28VDC/10A with octocoupler isolation, blue LEDs for status Expansion – 16-pin header (unpopulated) with GPIOs, 3.3V, and GND USB – 1x USB Type-C for programming via optional T-U2T dongle via CH9102 USB to TTL chip Misc – Reset button, red user LED Power Supply – 12V to 24V via 2-pin terminal block Dimensions – 17 x […]

LilyGO T-PicoC3 board merges RP2040 & ESP32-C3, integrates color display

LilyGO T-PicoC3

LilyGO T-PicoC3 is a small development board combining Raspberry Pi RP2040 dual-core microcontroller with ESP32-C3 RISC-V MCU to add WiFi and Bluetooth LE connectivity and adds a 1.14-inch color display to the mix, plus several I/Os. We had previously other designs merging ESP32 and RP2040 with UDOO KEY, Arduino Nano RP2040 Connect, or the Pico Wireless Pack among others, but as far as I know, the T-PicoC3 board is the first to use Raspberry Pi RP2040 and ESP32-C3 RISC-V processor. LilyGO T-Pico3 specifications: Microcontrollers Raspberry Pi RP2040 dual-core Cortex-M0+ MCU with 264 KB of embedded SRAM Espressif Systems ESP32-C3 RISC-V processor with WiFi 4 and Bluetooth 5.0 LE connectivity Storage – 4MB SPI flash connected to RP2040 Display – 1.14-inch full-color IPS LCD Display (ST7789V SPI controller) with 240 x 135 resolution USB – USB Type-C port for power and programming (RP2040 / ESP32-C3) Expansion – 15-pin + 12-pin expansion […]

TTGO T-Block modular ESP32 devkit supports “Trolley” covers acting as display, buttons, sensor, proto area, etc…

TTGO T-Block modular ESP32 devkit

When I first  LilyGO TTGO T-Block ESP32 devkit with an enclosure and a display it reminded me of the M5Stack Core2 devkit, but it’s actually different as LilyGO designed a modular system that allows users to change the functionality of the top cover with expansion boards called “Trolleys”. That means TTGO T- Block can be fitted with a small e-Ink display, a prototyping cover, an RGB LED matrix, a small board that supports various MQ gas sensors, touch buttons, or a Trolley board equipped with headers compatible with common Arduino modules. TTGO T-Block Host 9102 preliminary specifications: WiSoC – ESP32 dual-core processor @ 240 MHz with 520KB SRAM, WiFi 4 and Bluetooth LE 4.2/5.x connectivity Memory – 8MB PSRAM Storage – 16MB SPI flash, MicroSD card slot USB – 1x USB Type-C for power and programming via CH2104 USB to TTL chip Trolley interface – 20-pin connector with 17x GPIO, […]

TTGO T-CAN485 – An ESP32 board with RS485, CAN bus interfaces

TTGO T-CAN485

LilyGO is regularly bringing ESP32 boards to market for specific applications, and their latest TTGO T-CAN485 connects ESP32 to CAN bus and RS485 industrial control interfaces. The board also takes 5 to 12V power input via a 2-pin terminal, comes with a microSD card for data storage, a USB Type-C port and CH340K serial chip for programming and debugging, plus a 12-pin GPIO header, some buttons, and an RGB LED. TTGO T-CAN485 board specifications: SoC – Espressif System ESP32 dual-core processor @ up to 240 MHz with 2.4 GHz Wi-Fi, Bluetooth 4.2 LE connectivity Storage – 4MB flash, microSD card socket Industrial control interfaces CAN bus via 3-pin terminal block RS485 via 3-pin terminal block Expansion – Unpopulated 12-pin header with 8 GPIOs configurable as UART, SPI, I2C, plus VDD, GND Debugging – USB-C port for serial access via CH340K USB to TTL chip Misc- Reset and Boot boots, WS2812 […]

Build a LoRaWAN weighing scale with TTGO T-Weigh ESP32 board, HX711 modules

TTGO T-Weigh

Ever wanted to build your own LoRaWAN connected weighing scale? Me neither, but apparently those types of products already exist for logistics and inventory management, and LilyGO’s latest ESP32 board – the TTGO T-Weigh – is designed for this exact purpose with a Semtech SX1272 based LoRa module, and four HX711 24-bit ADC chips. The board can handle up to four scales that transfer weight data over WiFi, Bluetooth or LoRaWAN, and should be useful in applications that require weighting goods or products where there are limited connectivity options including logistics, farming. TTGO T-Weigh specifications: Wireless modules TTGO T-Micro32 module based on ESP32-PICO-D4 SiP with ESP32 dual-core processor, 4MB SPI flash, 2.4 GHz WiFi 4 and Bluetooth 4.2/5.x TTGO LORA32 module based on Semtech SX1262 transceiver  (EU868/US915)with -22 dBm Tx power, -148 dBm sensitivity, up to 62.5 kbps LoRa bitrate, up to 300 kbps FSK bitrate Antennas WiFi/Bluetooth – Ceramic […]

$10 LILYGO T-Display RP2040 board integrates a 1.14-inch color display

LILYGO T-Display RP2040 board

As its name implies, LILYGO T-Display RP2040 is a Raspberry Pi RP2040 based development board that comes with a display, and more exactly a 1.14-inch color display with 240×135 resolution and based on ST7789V SPI display driver. The T-Display RP2040 board joins other Rasberry Pi RP2040 boards with integrated displays like Arducam Pico4ML, but does so at a much lower price with LILYGO selling the board for just $9.98 on Aliexpress. LilyGO T-Display RP2040 specifications: Microcontroller – Raspberry Pi RP2040 dual-core Cortex-M0+ MCU with 264 KB of embedded SRAM Storage – 4MB SPI flash Display – 1.14-inch full-color IPS LCD Display (ST7789V SPI controller) with 240 x 135 resolution Expansion – 15-pin + 12-pin expansion headers with 14x GPIOs, 6x PWMs, up to 2x UART, up to 2x I2C, up to 2x SPI, 2x programmable high-speed I/O, 5V, 3.3V, Vbat, and GND Misc – Boot & enable buttons, 2x user […]

T-Watch 2021 ESP32 round smartwatch features ESP32 SoC, touchscreen, 500mAh battery

LilyGO T-Watch 2021

Back in May, LilyGo started selling “Paul’s 3D Things” Open-Smartwatch open-source hardware ESP32 watch as a kit with the board and a round display, but no case, wristband, or battery, although now a smartwatch kit, but still without battery, is available for around $30. The company has now designed the T-Watch 2021 which builds upon the Open-Smartwatch but adds features like a touchscreen display, a vibration motor, a magnetometer, and ships as a devkit with board and display or a complete smartwatch kit including a 500mAh battery. T-Watch 2021 specifications: Wireless module – LILYGO T-micro32 module based on ESP32-PICO-D4 module with dual-core ESP32 processor, 4MB FLASH, 2MB PSRAM, ceramic antenna and u.FL antenna connector Connectivity – Bluetooth 4.2 BR/EDR BLE and WiFi 4 2.4GHz 802.11 b/g/n Display –  1.3-inch circular touchscreen LCD with 240×240 resolution (Model GC9A01) USB – Micro USB for charging and programming Sensors 3-axis BMA423 accelerator, pedometer […]

TTGO T-Motion USB adapter offers LoRa and GPS for under $30

USB LoRaWAN GPS tracker adapter

USB adapters are one of the easiest ways to add new features to existing hardware, and if you’d like to add LoRa connectivity and GPS tracking to any device or board with a USB board TTGO T-Motion USB adapter offers just that. Manufactured by LilyGO, the USB dongle is based on AcSiP S76G system-in-package that integrates an STM32 MCU with a Semtech SX1276 LoRa transceiver and GPS into a single. The GPS antenna is placed on the board inside the enclosure, while the external LoRa antenna is connected through an SMA connector. TTGO T-motion specifications: SiP – AcSiP S76G system-in-package with STMicro STM32L073x Arm Cortex M0+ MCU with up to 192 KB of Flash memory and 20 KB of RAM, Semtech SX1276 supporting global 868 MHz or 915 MHz ISM-Bands, Sony CXD5603GF GNSS receiver. Antenna Internal GPS antenna External LoRa antenna Host interface – USB 2.0 male port Misc – […]