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September 22, 2022September 27, 2022

T-Watch-Keyboard-C3 with ESP32 “watch”, ESP32-C3 keyboard looks like a miniature PC replica

T-Watch-Keyboard-C3 is a device that looks like a miniature PC replica comprised of an ESP32-C3 powered keyboard, and the TTGO T-Watch ESP32 programmable device with a 1.54-inch touchscreen display. The LilyGo TTGO T-Watch ESP32 programmable touchscreen display has been around for a while, and the company used to provide an accessory keyboard based on Microchip ATSAM20 Cortex-M0+ microcontroller that has now been replaced with ESP32-C3 WiFi and Bluetooth RISC-V microcontroller to create the T-Watch-Keyboard-C3 devices pictured below. T-Watch-Keyboard-C3 specifications: TTGO T-Watch MCU – ESP32-D0WDQ6 dual-core microcontroller @ 240 MHz with WiFi 4 and Bluetooth 4.x with 520KB SRAM Memory – 8MB PSRAM Storage – 16MB QSPI flash Display – 1.54-inch LCD screen USB – 1x USB Type-C port for power and programming via CP2104 USB to TTL chip Sensor – 3-axis accelerometer Misc – Power button, RTC Dimensions – 40 x 38 x 20 mm Weight – 43.19 grams […]

August 30, 2022August 30, 2022

ESP32 board supports 2.4Ghz LoRa with SX1280 RF transceiver

We’ve seen plenty of ESP32 LoRa boards with the traditional 433 MHz, 868 MHz, or 915MHz frequencies, but I think LilyGO LoRa V1.8 (aka T3 V1.8) is the first ESP32 board that integrates a Semtech SX1280 transceiver for the 2.4GHz LoRa standard used for global coverage, notably maritime applications, and ranging. The ESP32 & SX1280 board also offers 26 pins for expansion, a microSD card for data storage, a 2-pin connector for batteries, a 0.96-inch OLED for information display, and comes with a 3D antenna and u.FL connector for WiFi and Bluetooth, and an SMA antenna for LoRa connectivity. LilyGO LoRa/T3 V1.8 specifications: SoC – Espressif ESP32 dual-core Xtensa LX6 processor with 2.4 GHz WiFi 4 and Bluetooth 4.2 Storage – 4MB SPI flash, microSD card slot Display – 0.96-inch OLED display with 128×64 resolution (SSD1306 I2C driver) Connectivity 802.11 b/g/n WiFi 4 up to 150 Mbps + Bluetooth 4.2 […]

ArmSoM RK3588 AIModule7 NVIDIA Jetson Nano-compatible SOM

August 11, 2022August 17, 2022

ESP32 board with rotary encoder gets 2-key keypad shield

LILYGO TTGO T-Encoder, a round-shaped ESP32 board with a built-in rotary encoder, has gotten a shield with a 2-key keypad based on WCH CH552 8-bit microcontroller. Launched several months ago, the TTGO T-Encoder is a USB-powered rotary encoder with ESP32 microcontroller offering WiFi and Bluetooth connectivity, and now, you can build a keypad with rotary encoder thanks to T-Encoder shield that features two mechanical switches and keycaps with RGB LED backlight. Since we missed it at launch, let’s check out the tiny TTGO T-Encoder board specifications first: System-in-Package (SiP) – Espressif ESP32-PICO-V3-02 with MCU – ESP32 Xtensa dual-core 32-bit Xtensa LX6 microcontroller up to 240 MHz, 448 KB ROM for booting and core functions, 520 KB SRAM for data and instructions, 2.4 GHz WiFi 4 and Bluetooth 4.2 BR/EDR + LE connectivity Memory – 2MB SPI PSRAM Storage – 8MB SPI flash Dimensions – 7×7 mm Antenna – Ceramic […]

LILYGO 7-5 inch E-paper Display with T5 ESP32 board

August 1, 2022

$52 7.5-inch E-paper display connects to ESP32 boards

So far LILYGO’s ESP32 boards with an E-Paper display such as the TTGO T5 or Mini E-Paper Core featured smaller displays from 1.02-inch to 2.9-inch. But the company is now offering a larger 7.5-inch display that works with most of its T5 boards excluding the one used with a 4.7-inch display. The black and white e-paper display offers a resolution of 800 x 480 pixels, is Arduino programmable and backward compatible with earlier T5 E-paper solution, and should be one of the most cost-effective to way to make a wireless E-paper display. LilyGO 7.5-inch E-paper display specifications: Panel SKU – DKE DEPG0750_U790F3 (See PDF datasheet. note non-secure link so your browser may complain) Size – 7.5-inch diagonal Resolution – 800 x 480 pixels (124 DPI) Active area – 163.2 x 97.92mm Pixel pitch – 0.204 x 0.204 mm Host interface – SPI Dimensions – 170.2 x 111.2 x 1.2 mm […]

June 27, 2022

ESP32 board with 150Mbps 4G LTE modem also supports RS485, CAN Bus, and relay expansion

LILYGO has designed another ESP32 board with a 4G LTE modem with the LILYGO T-A7608E-H & T-A7608SA-H variants equipped with respectively SIMCom A7608SA-H for South America, New Zealand, and Australia, and SIMCom A7608E-H for the EMEA, South Korean, and Thai markets, both delivering up to 150 Mbps download and 50 Mbps upload speeds. The board also supports GPS, includes a 18650 battery holder, and features I/O expansion headers that support an add-on board with RS485 and CAN bus interfaces, in a way similar to the company’s earlier TTGO T-CAN485 board with ESP32, but no cellular connectivity. LILYGO T-A7068E-H/T-A7608SA-H board specifications: Wireless Connectivity WiFi & Bluetooth – ESP32-WROVER-E module based on ESP32 dual-core processor @ 240 MHz with 4MB flash, 8MB PSRAM, 2.4 GHz WiFi 4 and Bluetooth 4.2/5.x connectivity, PCB antenna Cellular connectivity Data transfer speeds 4G LTE – Up to 150 Mbps downlink, up to 50Mbps uplink 3G HSPA+ […]

May 6, 2022

T-Dongle ESP32-S2 WiFi development board comes with two USB OTG ports

LilyGO has been very busy in recent weeks, and their latest product is the “T-Dongle ESP32-S2” development board that looks very much like Espressif ESP32-S3-USB-OTG board development board but is equipped with the single-core WiFi-only ESP32-S2 processor instead of the dual-core ESP32-S3 SoC with WiFi 4 and Bluetooth 5.0. The T-Dongle ESP32-S2 board is designed for the development of USB applications and comes with USB OTG female and male ports, as well as the same 1.14-inch color display found on T-Display RP2040/ESP32 and T-PicoC3 boards. T-Dongle ESP32-S2 development board specifications: Wireless SoC – Espressif Systems ESP32-S2 single-core Xtensa LX7 processor @ up to 240 MHz with 320 kB SRAM, 128 kB ROM, WiFi 4 connectivity Antennas – 3D antenna, IPEX antenna connector Storage – MicroSD card socket Display – 1.14-inch full-color IPS LCD Display (ST7789V SPI controller) with 240 x 135 resolution USB 1x USB OTG female port to connect […]

Rockchip RK3568, RK3588 and Intel x86 SBCs and SoMs in 2025

February 8, 2022February 8, 2022

MutantW V1 – An open-source ESP32 smartwatch designed with Autodesk Fusion 360 and EAGLE

Rahmanshaber is known for its DIY Raspberry Pi handheld PCs such as MutantC v4, but MutantW V1 is a completely different device as an ESP32-based DIY open-source smartwatch that he designed with Autodesk Fusion 360 and EAGLE. The smartwatch is equipped with a 1.7-inch IPS LCD display (non-touch), two hardware buttons, a NeoPixel RGB LED, a vibration motor, as being powered by an ESP32 SoC offers both 2.4GHz WiFi 4 Bluetooth LE connectivity. MutantW V1 specifications: WIreless module – A.i. Thinker ESP32-S WiFi and Bluetooth module with ESP32 dual-core processor @ 240MHz with 520KB SRAM, 4MB SPI flash Display – 1.69-inch SPI IPS LCD display (ST7789 driver) with 280 x 240 resolution, scratch-resistant front glass. Note: no touchscreen Programming – Via 4-pin charging cable or OTA firmware upgrade Misc – 2x programmable buttons, NeoPixel RGB LED, vibration motor Battery – 3.7V/200mAh LiPo battery likely good for one or two days; […]

January 3, 2022January 4, 2022

ESP32 CAN board fits into OBD-II dongle, supports auto shutdown

RejsaCAN-ESP32 is a small board based on ESP32-WROOM-32 WiFi (and Bluetooth) module with a CAN interface that fits into a 3D printed OBD-II dongle for easy installation into most cars. Magnus Thomé has already published several automotive projects, notably for car racing with a system that checks real-time tire temperature, and he designed RejsaCAN-ESP32 board so that it can be plugged directly into his car with support for 5-15V input voltage, and also includes an auto-shutdown option to prevent battery drain by monitoring the battery voltage in the car. RejsaCAN-ESP32 specifications: Wireless module – ESP32-WROOM-32 module with a dual-core ESP32 processor @ 240 MHz with 2.4 GHz WiFi 4 and Bluetooth 4.2 connectivity, PCB antenna, 32Mbit SPI flash USB – 1x USB-C port for power and programming via CP2104 USB to TTL chip Expansion – 15-pin header with 3x GPIO, SPI, I2C, analog input, PWM or analog output, CAN bus […]