Espressif Category - Page 84 of 94 - CNX Software

May 30, 2017May 30, 2017 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Olimex ESP32-EVB Board with Ethernet, CAN Bus, and Relays up for Sale for 26 Euros

One of the new feature of Espressif ESP32 SoC over ESP8266 is the inclusion of an Ethernet MAC interface, but so far few boards come with an RJ45 jacks. ESP32 Monster board is an option, also including an OLED Display and CAN Bus, and sold on Tindie for $35, but Olimex has now stocked their ESP32-EVB board with Ethernet, CAN Bus, and two relays, and you can purchase it for 26 Euros per unit, and less in larger quantities. Olimex ESP32-EVB Rev. B specifications: Wireless Module – ESP32-WROOM32 module with 802.11 b/g/n WiFi and Bluetooth LE Wired Connectivity – 10/100M Ethernet with RJ45 jack (via LAN8710A) External Storage – micro SD slot Relays – 2x 10A/250VAC relays with LED status Expansion 40-pin GPIO female header (2.54mm pitch) UEXT connector for sensors and modules CAN Bus USB – 1x micro USB port for debugging (CH340T) and power Misc – Reset and […]

May 25, 2017May 25, 2017 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

Melon S3 FPGA Arduino & Raspberry Pi Compatible Board is Programmable over WiFi using ESP8266 WiSoC

Q-Wave Systems, an embedded systems company based in Thailand, has designed Melon S3 FPGA board powered by a Xilinx Spartan 3E FPGA with WiFi connectivity added through a ESP8266 module programmable with the Arduino IDE , and featuring two Raspberry Pi compatible headers. The FPGA bitstream can be updated over WiFi, and does not require a JTAG debugger. Melon S3 FPGA specifications: FPGA – Xilinx Spartan XC3S500E FPGA with 500K gates, 73Kb Distributed RAM, 4 Digital Clock Manager (DCM), 20 Multipliers (18×18), 360 Kb Block RAM WiFi module – WROOM-2 with Espressif ESP8266 32-bit MCU @ 80 MHz supporting 802.11 b/g/n WiFi. Storage – 4MB SPI flash in total with 1MB for ESP8266, 3 MB for FPGA Expansion – 2x 40-pin Raspberry Pi compatible headers; 3.3V tolerant Debugging – Onboard USB-UART Silicon Labs CP2104 for configuration, debugging and power; 6-pin JTAG port for debugging/programming Misc – 8x Users LEDs, 4x […]

May 22, 2017May 22, 2017 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

Arduino Cinque Combines SiFive RISC-V Freedom E310 MCU with ESP32 WiFi & Bluetooth SoC

SiFive introduced the first Arduino compatible board based on RISC-V processor late last year with HiFive1 development board powered by Freedom E310 MCU, but the company has been working with Arduino directly on Arduino Cinque board equipped with SiFive Freedom E310 processor, ESP32 for WiFi and Bluetooth, and an STM32 ARM MCU to handle programming. Few other technical details have been provided for the new board, but since it looks so similar to HiFive1, I’ve come with up with preliminary/tentative Arduino Cinque specifications: MCU – SiFive Freedom E310 (FE310) 32-bit RV32IMAC processor @ up to 320+ MHz (1.61 DMIPS/MHz) WiSoC – Espressif ESP32 for WiFi and Bluetooth 4.2 LE Storage – 32-Mbit SPI flash I/Os 19x Digital I/O Pins 19x external interrupt pins 1x external wakeup pin 9x PWM pins 1/3 SPI Controllers/HW CS Pins I/O Voltages – 3.3V or 5V supported USB – 1x micro USB port for power, […]

May 9, 2017May 10, 2017 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

SHA2017 Conference Badge To Feature ESP32 SoC, e-Paper Display

In most conference, you’ll wear a badge showing your name, job description and company, but with the price of electronics going down, it may be time for a conference badge upgrade. SHA2017 is a non-profit outdoor hacker camp taking place in The Netherlands in 2017 on August 4 – 8, and the organizers are planning to use a special badge comprised of Espressif ESP32 processor, and an e-Paper Display. SHA2017 Badge specifications: Wireless Module – Espressif ESP32 based ESP-WROOM-32 module with WiFi and Bluetooth Display – 2.9″ e-paper display (296×128) Storage – micro SD slot Expansion – 12-pin expansion header with GPIOs, I2C, 3.3V, GND Debugging – micro USB port + USB->TTL chip for programming Misc – Direction keys, select, start, A and B buttons for input; 6x RGB, LEDs; pager motor for notifications Battery – Battery sized to last at least a day Beside your name and company details, […]

May 7, 2017May 12, 2017 by Jean-Luc Aufranc (CNXSoft) - 18 Comments

Getting Started with ESP32-Bit Module and ESP32-T Development Board using Arduino core for ESP32

Espressif ESP32 may have launched last year, but prices have only dropped to attractive levels very recently, and Espressif has recently released released ESP-IDF 2.0 SDK with various improvements, so the platform has become much more interesting than just a few weeks ago. ICStation also sent me ESP32-T development board with ESP32-bit module, so I’ll first see what I got, before trying out Arduino for ESP32 on the board. ESP32-T development board with ESP-bit Module – Unboxing & Soldering One thing I missed when I asked for the board is that it was not soldered, and it comes in kit with ESP32-bit module in one package, and ESP32-T breakout board with headers in another package. The 21.5x15mm module is based on ESP32-DOWNQ6 processor with 32 Mbit (4MB) of flash, a chip antenna, and a u.FL connector. The module is apparently made by eBox, and also used in Widora board with […]

May 2, 2017May 2, 2017 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

Whitecat ESP32 N1 Board Combines ESP32 WiFi + Bluetooth SoC with a LoRa Transceiver, Runs Lua RTOS

Espressif ESP32 SoC is gaining traction right now as prices have come down, and there’s still an on-going fight among LPWAN standards with LoRaWAN being fairly popular in Europe. Whitecat, a group of engineers from several companies based in Citilab, Barcelona, Spain, has designed a board that combines both ESP32 and a LoRA transceiver, bringing an alternative to Pycom LoPy board, but instead of running MicroPython, they have developed Lua-RTOS. Whitecat ESP32 N1 hardware specifications: SoC – Espressif ESP32 dual-core Tensilica LX6 microprocessor @ up to 240MHz with 520kB internal SRAM Storage – 4MB flash memory Connectivity LoRa WAN transceiver working in the 868 (EU) MHz / 915 (USA) MHz with on-board antenna, and u.FL connector for external antenna Integrated 802.11b/g/n WiFi transceiver with on-board antenna, and u.FL connector for external antenna Integrated dual-mode Bluetooth (classic and BLE) I/O Headers – 2x 16-pin with SPI, I2C, I2S, SDIO, UART, CAN, […]

April 21, 2017 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

$6.90 Wemos LoLin32 ESP32 Development Board Comes with 4MB Flash, Lithium Battery Support

Wemos – the company behind the cool Wemos D1 mini ESP8266 board – has now launched its first Espressif ESP32 development board with LoLin32 equipped with ESP-WROOM-32 module with 4MB flash, a micro USB port, and a battery header. Wemos Lolin32 specifications: Wireless Module – ESP-WROOM-32 based on Espressif ESP-32 dual core processor @ 240 MHz with 4MB flash Connectivity – 802.11 b/g/n WiFi + Bluetooth LE I/Os 26x digital I/Os 12x analog inputs UART, I2C, SPI, VP/VN, DAC 3.3V I/O voltage Breadboard compatible USB – 1x micro USB port for power and programming/debugging Power – 5V via micro USB + battery header for Lithium battery (charging current: 500mA max) Dimensions – 5.8 x 2.54 cm Weight – 5.8 grams The board is not compatible with Wemos D1 mini (34.2 x 25.6 mm) and shield, but offers a more powerful solution with Bluetooth LE, battery support, and more I/Os. The […]

April 20, 2017April 22, 2017 by Karl Johnson - 4 Comments

Karl’s Home Automation Project – Part 4: MQTT Bridge Updated to Use YS-IRTM IR Receiver & Transmitter with NodeMCU

In a previous article, I wrote about an MQTT bridge by 1technophile. I added a DHT temperature and humidity sensor as well as a light sensor. Previously it included a software decoder to decode the IR signal. I never did test the IR transmitter on the gateway, as I didn’t have the parts. But thanks to IC Station, who sent me over a small YS-IRTM hardware based decoder and NodeMCU that I am writing about today. I have replaced the software based version with the YS-IRTM module in the latest update. I found this project challenging. I admit I am a little weak in my programming skills. It was difficult to find documentation but I found a forum talking about this device and basics of how it works. When an IR code is recognized it sends 3 hex codes via serial connection on the transmit pin. To transmit, it expects […]