Espressif Category - Page 96 of 104 - CNX Software

February 10, 2017February 10, 2017 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

22€ Olimex ESP32-EVB ESP32 Development Board Features an Ethernet Port and Relays

We already have a good choice of ESP32 development boards, but none of the ones I’ve seen make use of the Ethernet MAC interface found in Espressif ESP32 SoC. Olimex has changed that with their ESP32-EVB featuring ESP32-WROOM32 module as well as one Fast Ethernet port and two relays. Olimex ESP32-EVB specifications: Wireless Module – ESP32-WROOM32 module with 802.11 b/g/n WiFi and Bluetooth LE Wired Connectivity – 10/100M Ethernet RJ45 port External Storage – micro SD slot Relays – 2x 10A/250VAC relays Expansion 40-pin GPIO female header (2.54mm pitch) UEXT connector for sensors and modules Misc – 2x user buttons Power Supply 5V power jack LiPo charger and step up converter allowing ESP32-EVB to run from LiPo battery The company still have to write software samples, and do some testing to make sure the board work before going into mass production. Once everything is cleared, the board will be sold […]

February 6, 2017February 10, 2017 by Jean-Luc Aufranc (CNXSoft) - 13 Comments

Oh Look… Espressif ESP32 Die-shot! That’s Pretty!

Espressif ESP32 was launched last year as a faster and upgraded version of ESP8266, with a dual core processor, 802.11 b/g/n WiFi and Bluetooth 4.0 LE. Boards based on the processor are still priced much higher than the ones based on ESP8266 ( although we’re only talking about $20 here), and shops have trouble keeping stocks, so either there’s a huge demand, there’s some manufacturing bottleneck, or maybe Espressif wants to take it slow at the beginning in case some hard to find bugs are found in the Silicon. Nevertheless, the guys at Zeptobar got hold of some ESP32 modules, and took some pretty die-shots. The die size is 2960×2850 µm. The prettiest part is clearly the RF section zoomed in below. If you wonder how it compares to ESP8266 die-shot, Zeptobar has you covered. Jean-Luc Aufranc (CNXSoft)Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his […]

January 21, 2017January 21, 2017 by Jean-Luc Aufranc (CNXSoft) - 13 Comments

How to use Sonoff POW with ESPurna Firmware and Domoticz Home Automation System

Sonoff POW is an ESP8266 based wireless switch with a power meter that comes pre-loaded with a closed-source firmware that works with eWelink app for Android or iOS by default. But we’ve also seen Sonoff POW, and other Sonoff wireless switches from the same family, can be flash with open source firmware supporting MQTT (Message Queuing Telemetry Transport) lightweight messaging protocol such as ESPurna, and I initially sent data from Sonoff POW to ThingSpeak via an MQTT broker (mosquitto) to draw some pretty charts. I did that with the switch connected to a lightbulb, but I’ve since installed Sonoff POW in my office to measure the room’s power consumption minus the ceiling light and aircon as shown below. Sonoff cable mechanism is really a pain for hard copper wires, as they are hard to push inside the mechanism, and something come out. I finally managed by it took longer than […]

December 30, 2016December 31, 2016 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

ESP32-WROVER-KIT Devkit Supports Espressif ESP32 Modules, Includes a 3.2″ LCD Display

Yesterday Olimex wrote a blog post informing us that ESP32-CoreBoard was back in stock, one the many ESP32 boards launched late this year, but still hard to get. The company also mentioned they’d have limited quantity of the new ESP32-WROVER with JTAG and LCD display together with the picture below. ESP32 is quite more powerful than ESP8266 so it makes sense to have an ESP32 development kit with an LCD display. A quick DuckDuckGo search led me to ESP-WROVER-KIT Getting Started Guide, where we can find more details including the overall specifications: Compatible with ESP-WROOM-32 and ESP32-WROVER modules based on ESP32 dual core Tensilica L108 processor clocked at up to 240 MHz with WiFi and Bluetooth LE connectivity Storage – Micro SD slot Display – 3.2″ LCD display connected via SPI USB – 1x micro USB port Expansion 8-pin UART header 6-pin SPI header 48-pin header for I/Os and camera […]

December 28, 2016December 28, 2016 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

vThings WiFi CO2 Monitor Quick Start Guide

I’ve already checked out vThings CO2 Monitor hardware and we’ve seen it’s based on ESPrino ESP8266 board, and my model includes CM1106 CO2 sensor and BMP180 temperature and pressure sensor. I’ve now installed it in my kitchen, about 3 to 4 meters from the gas stove, and getting data to ThingSpeak. The door and window of my kitchen are open all day, and the wall have ventilation holes. That’s important for CM1106 sensor since it auto calibrates every 3 days in clear air. If you plan to use such sensor in a closed environment, you should buy Vthings with CM1102 CO2 sensor that costs more, but does not require calibration. Since all WiFi systems I’ve just so far starting AP mode for configuration, I first looked for an access point, but… nothing… Then I decided to read the documentation (might be useful at times), and the monitor is actually configured […]

December 21, 2016June 25, 2023 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

Sonoff SC WiFi Environmental Monitor mini Review

Yesterday I received two environmental monitors with Sonoff SC and vThings CO2 Monitor, and while I’ve plugged both, I have not had time to look into vThings documentation, but since I’m already using the eWelink app for Sonoff TH16 wireless switch, setting up Sonoff SC just took me a few minutes, so I’ll report my experience with the device in this review. I powered Sonoff SC using the USB port of my modem router, and the green LED on the back of the device started to blink every 2 or 3 seconds. Then I started the eWelink app on my Android phone and taped on the “+” icon to add a new device following the instructions here which are basically the same for all Sonoff devices. Then you need to press the “Audio” button for about 5 seconds until the green LED blinks faster, at which point you can click […]

December 20, 2016December 28, 2016 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

ESP8266 based Wireless Air Quality & Environmental Monitors Teardown – Sonoff SC and vThings CO2 Monitor

The mailman delivered two parcels today, and interestingly enough they have a similar functionality measuring air quality and environmental data such as temperature. The first package was ITEAD Studio Sonoff SC environmental sensor with ESP8266, an Atmel MCU, DHT11 temperature & humidity sensor, a dust detector, a light sensor, and a microphone, while the second was v-Air Monitor vThings CO2 monitor v3 also based on ESP8266 with a CO2 sensor and other optional sensors. I’ll test both with their stock firmware later on, but today I’ll have a look at the hardware design. v-Air Monitor vThings CO2 monitor specifications While I’ve already written about Sonoff SC, it’s the first time I cover v.Air Monitor products, so let’s start with the specifications of vThings CO2 Monitor v3: SoC – Espressif ESP8266 WiSoC Connectivity 802.11 b/g/n WiFi Optional RF315 / 433 MHz RF module Sensors CO2 Sensor (one of them) CM1106 NDIR […]

December 19, 2016 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

Pycom To Sell WiFi, BLE, LoRa and Sigfox OEM Modules for Your Own Hardware Projects

Pycom is the company making some relatively popular IoT boards programmable with Python such as WiPy, LoPy, SiPy, and soon FiPy, supporting respectively WiFi+BLE, LoRa+WiFi+BLE, Sigfox+WiFi+BLE, and for the latter all four plus LTE CAT M1/NB1. Those little boards are great for personal projects and/or to experiment, but for those of you who would like to integrated IoT connectivity into your own hardware projects, Pycom will soon launch three OEM module for corresponding to WiPy, SiPy and LoPy connectivity featues with respectively W01, S01 and L01 modules. Key features: W01 WipY 2.0 OEM Module – Dual network BLE and WiFi – 7.95 Euros L01 LoPy OEM module – LoRa, WiFi and Bluetooth – 14.95 Euros S01 SiPy OEM module – Sigfox, WiFi and Bluetooth; Available in both 14dB (for Europe) and 22dB (outside Europe) version for respectively 14.95 and 19.95 Euros All three models have basically the same functionality as […]