Category: Espressif

Posted on by Jean-Luc Aufranc (CNXSoft) - 5 Comments on Programming RejsaCAN-ESP32-S3 CAN bus board with Arduino for car “hacking”

Programming RejsaCAN-ESP32-S3 CAN bus board with Arduino for car “hacking”

RejsaCAN-ESP32-S3 review

The RejsaCAN-ESP32-S3 is an ESP32-S3 board suitable for developers who want to build a car-related project. It can control or read the data from the OBD-II connector in your car using 2.4 GHz Wi-Fi or/and Bluetooth 5 (LE), or for IoT projects, connecting a sensor to the board and sending data to an app, the cloud, or log the data to a microSD Card. The board is designed to be small enough to be installed in a car.   The board is an evolution of the previous ESP32-based RejsaCAN-ESP32 with the developer – Magnus Thomé –  switching to the ESP32-S3 chip as previously announced. The main specifications are similar, but the ESP32-S3 is a newer LX7 processor with Bluetooth LE 5.0 support, and the ESP32 board had to use a USB-to-serial chip to communicate or upload the program through a PC, but the new board uses the USB interface on […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 4 Comments on Banana Pi BPI-Centi-S3 – An ESP32-S3 board with an 1.9-inch TFT display and a rotary encoder

Banana Pi BPI-Centi-S3 – An ESP32-S3 board with an 1.9-inch TFT display and a rotary encoder

Banana Pi BPI-Centi-S3 ESP32-S3 display board

Banana Pi BPI-Centi-S3 is an ESP32-S3 WiFi & BLE IoT board with a 1.9-inch color TFT display, a rotary encoder, and a few I/Os, which offers an alternative to the T-Track ESP32-S3 board with AMOLED and trackball we covered a few days ago. The Banana Pi board also comes with a 2MB on-chip PSRAM, an 8MB SPI flash, a USB Type-C port for power and debugging, two buttons, a buzzer, and an RGB LED. Besides powering the board with its USB-C port, you can also connect a LiPo battery with charging support. Banana Pi BPI-Centi-S3 specifications: SoC – Espressif Systems ESP32-S3 dual-core Tensilica LX7 @ up to 240 MHz with vector instructions for AI acceleration, 512KB RAM, 2MB PSRAM, wireless connectivity Storage – 8MB SPI flash Connectivity via ESP32-S3 2.4 GHz 802.11 b/g/n Wi-Fi 4 with 40 MHz bandwidth support up to 150 Mbps Bluetooth Low Energy (BLE) 5.0 connectivity […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 2 Comments on LILYGO T-Track ESP32-S3 board combines 1.1-inch AMOLED display with trackball

LILYGO T-Track ESP32-S3 board combines 1.1-inch AMOLED display with trackball

LILYGO T-Track board

After the T-Display-S3 AMOLED board, LILYGO has launched another ESP32-S3 board with an AMOLED display named the T-Track that features a smaller 1.1-inch AMOLED display and a trackball that allows the user to navigate any menu or user interface shown on the display. The rest of the board’s specifications are very similar with an ESP32-S3R8 dual-core chip with 8MB PSRAM providing WiFi and BLE connectivity, a 16MB SPI flash for storage, two rows of pins for up to 18x GPIOs, a Qwicc connector for module expansion, and support for USB-C charging and a LiPo battery for power. T-Track specifications: Wireless MCU – Espressif Systems ESP32-S3R8 dual-core Tensilica LX7 @ up to 240 MHz with vector instructions for AI acceleration, 512KB RAM, 8MB PSRAM, wireless connectivity Storage – 16MB flash Connectivity via ESP32-S3 2.4 GHz 802.11 b/g/n Wi-Fi 4 with 40 MHz bandwidth support Bluetooth Low Energy (BLE) 5.0 connectivity with […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 5 Comments on Lolin S3 Mini – Tiny $5 ESP32-S3 board follows Wemos D1 Mini form factor

Lolin S3 Mini – Tiny $5 ESP32-S3 board follows Wemos D1 Mini form factor

LOLIN S3 Mini

LOLIN S3 Mini is a tiny ESP32-S3 WiFi and Bluetooth IoT development board that follows the Wemos D1 Mini form factor and supports its equally tiny stackable shields to add relays, displays, sensors, and so on. Wemos/LOLIN introduced their first ESP32-S3 board last year with the LOLIN S3 board with plenty of I/Os and an affordable $7 price tag.  But I prefer the company’s Mini form factor because of its size and the ability to select add-on boards to easily add a range of features to your projects. So I’m pleased to find out the company has now launched the LOLIN S3 Mini following the ESP32-C3 powered LOLIN C3 Mini board unveiled in March 2022. LOLIN S3 Mini specifications: WiSoC – Espressif Systems ESP32-S3FH4R2 CPU – dual-core Tensilica LX7 @ up to 240 MHz with vector instructions for AI acceleration Memory – 512KB RAM, 2MB PSRAM Storage – 4MB QSPI […]

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on $60 M5Stack CoreS3 ESP32-S3 IoT controller comes with 2-inch display, VGA camera, multiple sensors

$60 M5Stack CoreS3 ESP32-S3 IoT controller comes with 2-inch display, VGA camera, multiple sensors

M5Stack CoreS3 ESP32-S3 IoT controller

M5Stack CoreS3 is a battery-powered ESP32-S3 IoT controller with WiFi and Bluetooth connectivity, a 2-inch touchscreen display, a 0.3MP camera, a microSD card slot for storage, several sensors, plenty of I/Os, a USB Type-C OTG port, as well as a 9V to 24V DC input port. That’s the second ESP32-S3 IoT controller from M5Stack we’ve seen this year, as the CoreS3 follows the smaller M5Stack AtomS3 with a 0.85-inch display, only a few I/Os, and fewer features overall although it does come with an IR transmitter that’s missing from the larger CoreS3. M5Stack CoreS3 specifications: Wireless MCU – Espressif Systems ESP32-S3FN16R8 dual-core 32-bit Xtensa LX7 microcontroller with AI vector instructions up to 240MHz, RISC-V ULP co-processor, 512KB SRAM, 2.4GHz WiFi 4 (802.11b/g/n), Bluetooth 5.0 BLE + Mesh, 16MB flash, 8MB PSRAM Antenna – Internal “3D” antenna Storage – MicroSD card slot Display – 2-inch display with 320×240 resolution via ILI9342C […]

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on HealthyPi 5 WiFi & BLE biosignal-acquisition sensor platform captures body temperature, ECG, PPG, SpO₂, and other vitals (Crowdfunding)

HealthyPi 5 WiFi & BLE biosignal-acquisition sensor platform captures body temperature, ECG, PPG, SpO₂, and other vitals (Crowdfunding)

Standalone Vital Sign Monitor

HealthyPi 5 is an open-source sensor platform for biosignal acquisition based on Raspberry Pi RP2040 microcontroller and ESP32-C3 WiFi & BLE module used to capture vitals such as electrocardiogram (ECG), respiration, photoplethysmography (PPG), oxygen saturation (SpO₂), and body-temperature data. It is a complete redesign of the HealthyPi v4 Raspberry Pi HAT with many of the same features. While the HealthyPi 5 also follows the Raspberry Pi HAT form factor and can be connected to a Raspberry Pi SBC to analyze the data, it can also be used as a standalone device with the processing handled by the RP2040 dual-core Cortex-M0+ microcontroller and connectivity through an ESP32-C3 wireless module, and data visualized on a 3.5-inch SPI display or a smartphone over WiFi or Bluetooth. HealthyPi 5 specifications: MCU – Raspberry Pi RP2040 dual-core Arm Cortex-M0+ microcontroller @ 133 MHz with 264 KB SRAM Wireless Module – ESP32-C3 RISC-V module with 2.4 […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 13 Comments on ESP32-H2-DevKitM-1 ESP32-H2 development board launched for $10

ESP32-H2-DevKitM-1 ESP32-H2 development board launched for $10

ESP32-H2-DevKitM-1

Espressif Systems unveiled the ESP32-H2 Bluetooth 5.2 LE & 802.15.4 RISC-V microcontroller in August 2021, but the ESP32-H2-DevKitM-1 development board based on the ESP32-H2-MINI-1 module has only been selling on the official Espressif’s Aliexpress store for $9.90 for a few weeks. The ESP32-H2-DevKitM-1 development board allows the development of applications with Bluetooth 5.2 LE, Zigbee, Thread, and/or Matter connectivity, features two USB Type-C ports, Boot & Reset buttons, and RGB LED, and two rows of 15 pins exposing all I/Os from the ESP32-H2-MINI-1 module. ESP32-H2-DevKitM-1 specifications: Wireless module – ESP32-H2-MINI-1 MCU – Espressif Systems ESP32-H2 32-bit RISC-V microcontroller at up to 96 MHz with 320 KB SRAM, 128 KB ROM, 4 KB LP memory, Bluetooth 5.2 LE/Mesh and 802.15.4 (Zigbee/Thread/Matter) radios. Storage – 4MB flash storage (E1N4 on the photo above should mean 4MB, but there are also ESP32-H2-MINI-1 modules with 1MB and 2MB flash) PCB antenna Dimensions – 13.2×16.6×2.4 […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 5 Comments on Review of TwoTrees TTC 450 CNC router machine with 80W and 500W spindles

Review of TwoTrees TTC 450 CNC router machine with 80W and 500W spindles

TwoTrees TTC450 CNC router machine review

TwoTrees TTC 450 is a CNC router machine for precision cutting with a working area of 460x460x80 mm. The machine can handle 2D and 3D, 3-axis X, Y, Z movement, features a 32-bit microcontroller,  a touchscreen control display, and supports WiFi network connection. The TTC 450 can also read files on an SD card for offline operation, and workpieces can be made of a variety of materials such as wood, acrylic, Plastwood, carbon fiber sheet, aluminum, metal, and various engineering plastic materials. TTC 450 CNC router specifications Work Area – 450 x 450 X 80 mm Body Material – Metal frame & Aluminium 4080U Profile Drive System – Translation screw drive with double Y-axis system Mainboard – DLC32 V2.1 (ESP32-based as found in TwoTrees TS2 laser engraver) Stepper Driver – A4988 1.3A Stepper Motors – 17HS8401S, NEMA23 20mN.m Spindle – 74W, 8000RPM Max Speed – 800mm/Min Running Accuracy – +/-0.1mm […]