Espressif Category - Page 50 of 94 - CNX Software

August 24, 2021August 24, 2021 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

An ESP32-based BBC Micro:bit clone – Meet Mbits

A few years ago, we noted a BBC Micro:bit clone based on ESP32 WiSoC with Banana Pi ‘s BPI:bit board with an array of 25 RGB LEDs and WiFi & Bluetooth LE connectivity. There’s now another such clone with Elecrow Mbits designed in a way that resembles the BBC Micro:bit v2 board, but replacing the Nordic Semi nRF52833 2.4GHz/BLE SoC with the ESP32 dual-core wireless chip with support for both WiFi and BLE. The specifications between Elecrow Mbits and BBC Micro:bit v2 are close enough, although ESP32 is a more powerful processor, and the MBits board comes with more memory and storage. Power consumption of the BBC Micro:bit v2 should be much better, so if anything needs to run on battery for an extended period of time, it may be a better choice, or you’re gonna need a bigger battery. The GPIO pinout looks different too, so not all Micro:bit […]

August 18, 2021August 18, 2021 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

$4 Lolin S2 Mini ESP32-S2 WiFi IoT board works with Wemos D1 Mini shields

If you liked Wemos D1 mini ESP8266 board with stackable add-on boards, you’ll probably love Wemos/Lolin S2 Mini board with the same factor, but fitted with an ESP32-S2 single-core WIFi processor, and offering twice the number of I/Os. The board comes with 4MB flash, 2MB PSRAM, a USB-C port for power and programming, as well as two 16 pin headers for GPIOs, ADC, DAC, and more. Lolin S2 Mini V1.0.0 specifications: SoC – Espressif Systems ESP32-S2FN4R2 Xtensa single-core 32-bit LX7 microprocessor up to 240 MHz with 320 KB SRAM, 4MB Flash, 2MB PSRAM Expansion headers – 2x 16-pin headers with 27x IO, ADC, DAC, I2C, SPI, UART, USB OTG USB – 1x Type-C USB for 5V power and programming Misc – Reset button and button 0 also used to enter Device Firmware Upgrade (DFU) Dimensions – 34.3 x 25.4 mm Weight – 2.4 grams The board is compatible with Lolin/Wemos […]

August 17, 2021September 20, 2022 by Jean-Luc Aufranc (CNXSoft) - 9 Comments

ZiGate-Ethernet – An ESP32 Ethernet, WiFi, and BLE Gateway with optional Zigbee connectivity

ZiGate Ethernet Raspberry Pi 4 enclosure

Frédéric Dubois, aka fairecasoimeme, has recently released ZiGate-Ethernet, an home automation gateway based on Espressif Systems ESP32 wireless SoC with Ethernet, WiFi, and Bluetooth LE connectivity. The gateway can also take an optional PiZiGate+ Zigbee module for support for a wider range of home automation gizmos, and everything is designed to fit in the official Raspberry Pi 4 enclosure. ZiGate-Ethernet specifications: Wireless module – ESP32-WROOM-32E with ESP32 dual-core processor, 16MB flash, PCB antenna Connectivity 10/100M Ethernet RJ45 port implemented through LAN8720 as on several other ESP32 Ethernet boards 2.4GHz WiFI 4 Bluetooth LE 4.2/5.x Zigbee through PiZiGate+ module with PCB antenna or optional external antenna USB – Micro USB port for power and programming Expansion – 16-pin GPIO header with up to 10x GPIO, 7x ADC, UART, 5V, 3.3V, and GND Misc- Reset and Flash button, ESP32/FTDI UART selection switch, Power Supply – 5V/500mA via micro USB port Dimensions – […]

August 13, 2021February 19, 2024 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

Arduino programmable wireless multitool offers color display, touch controls (Crowdfunding)

QUARK may look like the perfect weapon to hijack a plane, but instead, it’s an open-source, Arduino-based wireless multitool for hardware engineers equipped with a full-color screen and touch-based controls. Based on ESP32 WiFI & Bluetooth wireless SoC, Mulin Group’s QUARK is an ultra-portable multimeter, signal generator and oscilloscope, a bit like IkaScope WiFi Pen-Oscilloscope, except having a laptop or phone to visualize measurements is only optional. The company also compares it to DT71 smart tweezers which do not have an oscilloscope function due to the tiny display. QUARK features & specifications: WiSoC – ESP32 dual-core processor with WiFI & Bluetooth connectivity Display – 240 x 134 IPS display Measurements Voltage – 0 to 26 V Current – 0 to 3.2 A Resistance from 0 to 2 MΩ Capacitance from 2 pf to 1000 uF Inductance up to 1 H Sampling rate for oscilloscope function – 400 ksps Features – […]

August 9, 2021 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

PICO DSP is an Arduino compatible ESP32 development board for audio and DSP applications (Crowdfunding)

ESP32 audio development boards have been around ever since ESP32 boards were introduced starting with Espressif Systems’ own “ESP32-LyraTD-MSC Audio Mic HDK“, and now ESP32 hardware and software have been certified for Amazon Alexa Voice Services. PICO DSP is another ESP32 development board for audio and digital signage processing (DSP) applications. Equipped with a Wolfson WM9878 stereo audio codec, the breadboard-friendly, Arduino compatible board includes two MEMS microphones, audio in and out jacks, a speaker header, plus other audio signals routed to a GPIO header. PICO DSP specifications: SiP – Espressif ESP32-PICO-D4 system-in-package with ESP32 dual-core WiFi 4 & BLE processor, 4MB SPI flash External storage/memory Original Edition – External 64 MB pseudo-static (PSRAM) chip, of which up to 8 MB is currently supported by ESP-IDF. Strawberry Edition – 16 MB of external NOR flash (note: the internal 4MB SPI flash will not be usable after selecting the NOR flash […]

August 5, 2021August 10, 2021 by Jean-Luc Aufranc (CNXSoft) - 15 Comments

Board for 60 ESP-01 modules that update firmware from Github, mine “Duino Coins”

When I first saw the large ESP-01 V1.0 board on Facebook, I thought it was designed to speed up firmware updates of up to 60 ESP-01 modules. The developer, Thanormsin, just explained it would take 5 to 24V DC input to power all ESP8266 attached to it. It looks cool to have so many But there was no PC interface to update the firmware, so it did not make sense to me, even if it could be used for OTA firmware updates, as the first time, one would have to manual update the firmware. So I discussed with Thanormsin, and he explains to me his initial arrangement was a cable mess. That is why he designed a board to make it neater, and easier to manage. Each ESP-01 module can update firmware from the Internet, more especially from Github, as each time a new firmware version is uploaded to Github, […]

August 3, 2021August 3, 2021 by Jean-Luc Aufranc (CNXSoft) - 17 Comments

ESP32-H2 RISC-V WiSoC announced with Zigbee 3, Thread, and Bluetooth LE 5.2

Just a few days ago, we noted ESP32-H2 802.15.4 & BLE RISC-V SoC had shown up in the source code, and tried to derive specs and a block diagram from the info seeing it was similar to ESP32-C3, but swapping the WiFi radio for an 802.15.4 radio. We don’t need to guess anymore, as Espressif Systems has just announced ESP32-H2 RISC-V WiSoC with support for Zigbee 3.x, Thread 1.x through the 802.15.4 radio, as well as Bluetooth LE 5.2. So overall it’s very close to what we discussed from the information in the source code with ESP32-H2 highlights including: CPU – 32-bit RISC-V core (at up to 96 MHz) RAM – 256 KB SRAM Storage – External flash support Wireless connectivity IEEE 802.15.4 radio with Zigbee 3.x and Thread 1.x support, Matter protocol Bluetooth 5.2 (LE) radio designed in-house, with support for direct connection, Bluetooth Mesh, Bluetooth LE Audio Future […]

August 1, 2021 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

SmartBug smart switch integrates neatly into in-wall sockets (Crowdfunding)

SmartBug is a smart switch based on ESP32 wireless SoC, equipped with several sensors to measure temperature, humidity, power usage, and listen to sounds. It is designed to fit neatly into most in-wall sockets found around the world. Each SmartBug relies on mesh networking to communicate with each other and extend the range, WiFi for Internet connection, and Bluetooth low energy (BLE) to control additional devices without the need for any additional hub. SmartBug’s key features: MCU – 32-bit dual-core microcontroller with WiFi, wireless mesh, Bluetooth LE Connectivity 2.4GHz WiFI 4 Wireless mesh to let SmartBug act as a signal repeater Bluetooth 4.0 and BLE to control home appliances Audio Digital microphone for voices commands, baby crying (only enable if the plugin is downloaded in the app). Buzzer On-Off Relay up to 2200W, both AC and DC. Sensors – Temperature & humidity sensor, built-in power meter (current, voltage, and power) […]