esp32 News - Page 46 of 68 - CNX Software

December 20, 2020January 11, 2022 by Jean-Luc Aufranc (CNXSoft) - 34 Comments

ESP32-C3 WiFi & BLE RISC-V processor to launch at ESP8266 price

[Update December 2020: While we first reported ESP32-C3 would be pin-to-pin compatible to ESP8266 based on the tweet mentioned in the post, the datasheets show both are clearly not pin-to-pin compatible, and instead it looks like the goal is to provide pin-to-pin compatible modules] When we reported about ESP32-S2-MINI modules last September, we also noted Espressif teased us with ESP32-S3 and ESP32-C3 with close to no details. ESP32-S3 is expected to be a multi-core WiFI & Bluetooth processor with AI instructions/accelerator, but there were no details about ESP32-C3 at all, and we only found out it would be a RISC-V processor several weeks ago. But Twitter user Johnny Wu posted a screenshot in Chinese and its translation claiming ESP32-C3 was finally released by Espressif Systems. [Update: The datasheet has been released. See comments.] ESP32-C3 WiSoC is pin to pin compatible with ESP8266, works with ESP32 development framework (e.g. ESP-IDF), supports […]

December 15, 2020December 15, 2020 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

BBC Dr Who HiFive Inventor Coding Kit review – Tynker visual programing and MicroPython

The BBC Doctor Who HiFive Inventor Coding Kit was announced at the end of November 2020 with the goal of teaching IoT to young kids. But one day, I noticed the postman left a package on the ground right next to my house’s gate for some reason. I had no idea what it could be until I read it was from SiFive on the package. So here I am about to review BBC Doctor Who HiFive Inventor Coding Kit! The package actually included two small packages with one being an “expansion board”… HiFive Inventor Coding Kit Unboxing We’ve already written about the specs in the announcement post, but here they are again for those who forgot it’s based on SiFive FE310 RISC-V microcontroller and ESP32 for WiFi and Bluetooth. Let’s open the thinner “expansion board” package first. It’s actually the HiFive Inventor board – aka the mainboard – that comes […]

December 4, 2020December 4, 2020 by Jean-Luc Aufranc (CNXSoft) - 10 Comments

$25 TTGO T5 4.7-inch e-Paper Display comes with ESP32 WiFi & Bluetooth SoC

We’ve very recently covered M5paper IoT development kit based on ESP32 WiSoC, and equipped with a 4.7-inch touchscreen e-Ink display together with a 1,150mAh battery all nicely packed into an enclosure. It looks great, but costs $69, so if you’d like to integrate this type of ESP32 connected display into your own project at a lower cost, you may be interested in TTGO T5 4.7-inch e-Paper display with 16 gray levels fitted with an ESP32-WROVER-E module with 16MB flash, and 8MB PSRAM. TTGO T5 key features and specifications: Display 4.7-inch ePaper display with 960×540 resolution, 16 gray levels , partial refresh support 6-pin FPC touchscreen connector Wireless module – ESP32-WROVER-E with ESP32-D0WDQ6 V3 dual-core processor, 16MB flash, 8MB PSRAM USB – 1x USB-C port Expansion – 4-pin connector with GPIOs, GND, 3.3V Misc – 1x reset button, 4x user buttons Debugging – USB-C port connected to USB to TTL CP2104 […]

November 30, 2020November 30, 2020 by Abhishek Jadhav - 6 Comments

M5Paper ESP32 IoT development kit features a 4.7-inch e-Ink touchscreen display

M5Stack has just launched its unique and latest core device with a touchscreen e-Ink display. M5Paper ESP32 IoT Development Kit is a fully programmable microcontroller-based platform that can be an ideal choice for your IoT applications. This low-power device could suit such purposes as an industrial controller or smart weather display. The M5Paper comes with the ESP32-D0WD, the same chip that has powered M5Stack Core2. The e-Ink display supports 16-level grayscale, which provides a great reading experience. The display is a GT911 capacitive touch screen that supports multipoint touch and a variety of gesture controls. M5Paper ESP32 IoT Development Kit Specifications SoC – Espressif ESP32-D0WDQ6-V3 dual-core clocked at 240MHz with 520KB SRAM, Wi-Fi, dual-mode Bluetooth connectivity. Memory/storage – 16 MB of flash memory along with 8 MB of PSRAM. Antenna – 2.4GHz 3D antenna. Display – GT911 capacitive touch screen with 960×540 resolution (IT8951 driver) along with 4.7″ e-Ink display, […]

November 26, 2020February 22, 2021 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

MorphESP 240 ESP32-S2 board integrates a 1.3-inch color display (Crowdfunding)

MorphESP 240 ESP32-S2 board with color display

We’ve already seen ESP32 platforms with a color display such as M5Stack, but MorphESP 240 is kind of cute with a 1.3-inch color display, features the more recent ESP32-S2 WiFi processor, and supports battery power & charging. MorphESP 240 specifications: Wireless Module – ESP32-S2-WROOM with Espressif Systems ESP32-S2 single-core 32-bit Xtensa LX7 microprocessor up to 240 MHz with 128 KB ROM, 320 KB SRAM, 16 KB SRAM in RTC, 4MB SPI flash, 802.11 b/g/n 2.4 GHz Wi-Fi connectivity Display – Onboard 1.3-inch ST7789 display with 240 x 240 resolution, connected over SPI USB – 1x Micro USB port for power/charging and programming Expansion – 16-pin and 24-pin headers with GPIO, I2C, UART, SPI, USB, and power signals Misc – WS2812B RGB LED connected to IO16, Reset button, boot mode switch, battery on/off switch Power Supply 5 V to 3.3 V regulator to feed additional modules JST connector for a battery […]

November 20, 2020 by Jean-Luc Aufranc (CNXSoft) - 11 Comments

BBC Doctor Who “HiFive Inventor” Coding Kit aims to teach IoT to kids

In what should be one of the first RISC-V education platforms, the BBC, Tynker, and SiFive have just announced the BBC Doctor Who “HiFive Inventor” Coding Kit that comes with an MCU board with WiFi & Bluetooth and guided lessons for kids that teach them to code for the IoT. The HiFive Inventor board is based on a SiFive FE310 RISC-V microcontroller ( the same chip as found in the HiFive1 board) and an ESP32 Solo module for WiFi 4 and Bluetooth 4.x/5.x connectivity. Just like the BBC Micro:bit, HiFive Inventor provides a kids-friendly edge connector with I/O, an LED matrix, sensors, and more. The kit includes the HiFive Inventor hardware platform, a battery holder for three AA batteries (not included), the HiFive Speakers, an illuminated USB cable for power and programming, and alligator clips to connect the speaker or other add-ons to the HiFive Inventor board. HiFive Inventor board […]

November 19, 2020November 19, 2020 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

8-MOSFET solid-state power driver works with Raspberry Pi, Arduino, ESP32 and other maker boards (Crowdfunding)

Using inexpensive relays to switch AC or DC loads work well in most cases, but those relays will be quickly damaged when faced with high DC voltages, fast switching times, or other endurance requirements for which MOSFET’s are better suited, and that’s why MOSFET power supplies are found in 3D printers. Sequent Microsystems has made a habit to provide specialized Raspberry Pi HAT with relays or terminals for resistance temperature detectors that are stackable to supports a larger number for I/O or sensors. The company is now back at it with the 8-MOSFET stackable, DIN-rail mountable board that works not only with Raspberry Pi SBC, but also popular Arduino, ESP32, and other maker boards. 8-MOSFET key features and specifications: Eight MOSFETs with status LEDs 4 optimized for high-current (HC) loads up to 10 A / 24 VDC 4 optimized for high-voltage (HV) loads up to 2 A / 240 VDC […]

November 16, 2020November 16, 2020 by Jean-Luc Aufranc (CNXSoft) - No Comments

PixelBlaze v3 WiFi LED board supports live-coding via a web interface (Crowdfunding)

We’ve previously covered a couple of ESP8266 WiFi boards to control LED strips from ANAVI Technology ESP8266 powered ANAVI Miracle Controller and ANAVI Light Controller Starter Kit, but Ben Henke has also made similar ESP8266 LED controllers with PixelBlaze boards. The latest iteration – PixelBlaze v3 – is based on ESP32 WiSoC and comes in two variants: PixelBlaze v3 Standard with headers and PixelBlaze V3 Pico in a much tinier form factor (33.3 x 11mm) with both models supporting live-coding via a web interface. PixelBlaze v3 specifications: Wireless SiP or module Standard – ESP32-WROOM-32 module with Espressif ESP32 dual-core processor @ 240 MHz with 4MB flash Pico – ESP32-PICO-D4 system-in-package with Espressif ESP32 dual-core processor @ 240 MHz with 4MB flash 4-pin header with VCC, GND, DATA, CLK for LED matrix or strip Compatible with APA102, SK9822, DotStar, WS2811, WS2812 (up to 2,500 LEDs), WS2813, WS2815, NeoPixel, and WS2801 actively […]