Espressif Category - Page 52 of 94 - CNX Software

July 1, 2021 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

ThingPulse ESPGateway features not one, but two ESP32 wireless modules

ThingPulse ESPGateway is a WiFi and Bluetooth gateway equipped with two ESP32 modules, two external antennas, and a footprint for an RN2483 LoRaWAN chip. The two ESP32-WROVER modules communicate over UART, and this design allows one ESP32 to transmit data over WiFi or Bluetooth, while the other remains in promiscuous mode, or transmits data using ESPNow low-power proprietary protocol for applications we’ll discuss below. ESPGateway hardware specifications: Wireless connectivity 2x ESP32-WROVER-IB modules with dual-core ESP32 processor, 4MB flash, and 8MB PSRAM Footprint for RN2483 LoRaWAN module connected to one of the ESP32 module 2x external antennas for longer range Expansion – Unpopulated headers to access to 18 GPIO pins, 3.3V, and GND to add sensors, displays, actuators… Debugging – USB-C port for serial console connected to one CP2104 USB to TTL chip plus switch to select ESP1/ESP2 module Misc – 4x WS2812B programmable LEDs, Reset button ThingPulse explains in more […]

June 29, 2021June 29, 2021 by Jean-Luc Aufranc (CNXSoft) - No Comments

M5Stack Atom DTU LoRaWAN Kit also supports WiFi, RS485, Modbus communication

ESP32 WiFI, Bluetooth, LoRaWAN, and RS485 kit

M5Stack is known for its ESP32 based building blocks for the IoT with WiFi & Bluetooth wireless connectivity, I/O headers, and block-specific features like a tiny color display, a speaker, a touchscreen display, a camera, and more. The company’s latest product is the M5Stack Atom DTU LoRaWAN Kit based on ESP32 ATOM Lite, as well as ASR Micro ASR6501 LoRa module (SX1302 based) and one RS485 header that allows for industrial communication notably with the Modbus protocol. M5Stack Atom DTU LoRaWAN Kit specifications: Wireless connectivity M5Stack ATOM Lite with ESP32 WiFi 4 and Bluetooth 4.2/5.x dual-core SoC ASR ASR6501 LoRa chip Operating frequency – 868MHz or 915 MHz Transmit power – Up to +21dBm RX sensitivity – Up to -137dBm (SF=12/BW=125KHz) Serial communication – UART 115200bps (AT command) via ESP32 Antenna – SMA antenna connector Power consumption @ 3.3V (from ASR6501 datasheet) Tx @ +21dBm – 106 mA Rx – […]

June 25, 2021June 25, 2021 by Jean-Luc Aufranc (CNXSoft) - 14 Comments

Pico Wireless Pack adds ESP32 WiFi & Bluetooth module to Raspberry Pi Pico

Pico Wireless Pack for Raspberry Pi Pico

Pimoroni Pico Wireless Pack is an add-on board for Raspberry Pi Pico adding a MicroSD card socket and ESP32 WiFi & Bluetooth module to the popular MCU board. While it’s a nice idea to add wireless connectivity to Raspberry Pi Pico, ESP32 is a dual-core Xtensa LX6 processor clocked at 160 to 240 MHz with WiFi, Bluetooth, and plenty of I/Os that should be able to handle most tasks better than Raspberry Pi RP2040 dual-core Cortex-M0+ processor clocked at 48 MHz by default, although we’ve also seen it overclocked up to 252 MHz. It comes with female headers that allow it to be inserted directly to the back of Raspberry Pi Pico has shown above, or into a “GPIO expander” board like the Pico Omnibus shown below through an SPI interface. Pico Wireless Pack specifications: Wireless module – ESP32-WROOM-32E WiFi 4 & Bluetooth 4.2/5.x module with PCB antenna, 4 MB […]

June 23, 2021 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

LILYGO Mini E-Paper Core combines ESP32 with 1.02-inch ePaper Display in 3D printed enclosure

LILYGO Mini E-Paper Core is another ESP32-based e-Paper display by LILYGO, but it’s a really tiny 1.02-inch e-Paper display housed in a 3D printed enclosure that reminds me of M5Stack Core with a 2-inch TFT LCD. The tiny low-power display also offers a MicroSD card socket, a reset button, a three-way user button, as well as headers for GPIOs, ADC, DAC, SPI, and more. LILYGO Mini E-Paper Core specifications: Wireless SiP – ESP32-PICO-D4 system-in-package with ESP32 dual-core processor, 4MB Flash, 2.4 GHz WIFi 4 & Bluetooth connectivity Storage – MicroSD card socket Display – 1.02-inch e-paper display with 128×80 resolution USB – 1x USB Type-C for power and programming Expansion 7-pin 2.54mm pitch header with 5x GPIO, 2x ADC, 2x DAC, 3.3V, and GND 8- pin 2.54mm pitch header with 4x GPIO, SPI, 1x ADC, 5V, VBUS, VBat, and GND Misc – Three-way toggle button connected to G36, G0, […]

June 18, 2021 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

paperd.ink 4.2-inch ESP32-based e-Paper display ships with a 3D printed enclosure (Crowdfunding)

We’ve covered a fair amount of connected e-Paper/e-Ink displays based on ESP32 WiFi & Bluetooth SOC including several Inkplate displays, with the latest Inkplate 6Plus model including a touchscreen, TTGO T5 displays with small sizes, or even the fully enclosed M5Paper ESP32 IoT development kit with a 4.7-inch touchscreen e-Paper display. There’s also Watchy ESP32 smartwatch with a 1.54-inch display if you really need something small. But here’s another option courtesy of Rohit & Prasad, two young engineers from India, with the paperd.ink 4.2-inch ESP32-powered e-Paper display that ships with an optional 3D printed enclosure. paperd.ink display specifications: Wireless module – ESP32-WROOM-32 module with ESP32 dual-core processor, 4 MB SPI flash, 2.4 GHz WiFi 4 & Bluetooth LE connectivity Storage – MicroSD card slot for storing images, files, etc Display – 4.2″ monochrome e-Paper display with 400 x 300 resolution; 3s for full refresh; partial refresh supported USB – 1x […]

June 2, 2021 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

Inkplate 6PLUS ESP32 ePaper display gets higher resolution, a touchscreen, a frontlight (Crowdfunding)

Inkplate 6PLUS is an updated version of Inkplate 6 ESP32 powered 6-inch ePaper display that was introduced in 2019, wand comes with a higher 1024 x 758 resolution, and the addition of a touchscreen and a frontlight. Just like the original product, Inkplate 6PLUS makes use of recycled e-paper displays without thousands of screens currently in stock. Refresh performance per pixel is faster and similar to Inkplate 10, which leads to a complete screen refresh being about as fast as on the original Inkplate 6 despite the higher resolution. Inkplate 6PLUS specifications: Wireless module – ESP32 WROVER module with dual-core ESP32 processor with Wi-Fi 4 & Bluetooth 4.0 (BLE) connectivity, 8MB PSRAM, 4MB flash External storage – MicroSD card socket Display – 6-inch, 1024 x 758 e-paper display with support for grayscale, partial updates, and quick refresh cycles 1.27 second refresh time in black & white mode 1.52 second refresh […]

May 30, 2021January 17, 2023 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

MyCobot robotic arm is offered with Raspberry Pi 4 or M5Stack ESP32 modules

Elephant Robotics’ MyCobot robotic arm was introduced last year with M5Stack Atom & Basic ESP32 modules with 6-degrees of freedom, a 250 grams max payload, available now for $599. The company has launched a new $699 version – MyCobot-Pi – with most of the same features, except for an upgrade to Raspberry Pi 4B which offers more performance and flexibility. Both versions of MyCobot arm robotic arm support accessories such as a gripper and a suction pump attachable through a LEGO connector, but while the original version – MyCobot-M5 – relies on Arduino programming, the new MyCobot-Pi runs Debian/Ubuntu and ROS operating systems with image recognition algorithms that can work with a variety of cameras. Since we’ve missed last year’s announcement, we’ll cover both models in this article. MyCobot Robotic Arm Despite the mechanical parts being the same, the specifications for MyCobot-M5 and MyCobot-Pi differ quite a lot: Controller MyCobot-M5 […]

May 28, 2021 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

T-Nixie Tube is an ESP32 based Nixie Tube lookalike

I tend to see Nixie Tube projects regularly as I spend my days going through the news, and the projects, usually some sort of clock, typically look pretty neat. But although Nixie Tubes can still be purchased online, they are not mass-produced anymore, which may explain why LilyGo decided to create a “fake” Nixie Tube, or let’s call it a lookalike, with T-Nixie Tube that comes with an IPS LCD display driven by an ESP32 WiFi & Bluetooth WiSoC. T-Nixie Tube specifications: Wireless Module – TTGO T-Micro32 module with ESP32 V3 Bluetooth and WiFi processor, 4MB Flash Display – 1.14-inch IPS LCD display covered by glass tube USB – USB Type-C port for power and programming Expansion – 4-pin I2C/UART Grove? connector for T-WATCH sensor kit or T-FH interface sensor modules Misc – PCF8563 RTC, IR receiver, TTP223 touch button, Reset button Power Supply – 5V via USB-C port Dimensions […]