Espressif Category - Page 34 of 83 - CNX Software

December 22, 2021December 23, 2021 by Jean-Luc Aufranc (CNXSoft) - 14 Comments

ESP32 UWB board features DW1000 module for accurate indoor positioning

FiRa “Fine Ranging” UWB technology was introduced a few years ago and is now found in devkits and Apple U1 chip. Makerfabs ESP32 UWB board provides another option with Espressif ESP32-WROVER-32 or ESP32-WROOM-32 WiFi & Bluetooth module combined with a Decawave DW1000 module for precision tracking. Makerfabs explains the board acts like a continuously scanning radar that locks onto another device (called Anchor, since it’s usually in a fixed location) and communicates with it to determine the distance between objects by calculating the time of flight (ToF) between devices, or in other words, the roundtrip time of challenge/response packets. ESP32 UWB board specifications: Wireless modules: WiFi & Bluetooth LE – ESP32-WROVER-32 or ESP32-WROOM-32 module with ESP32 dual-core processor @ 240 MHz UWB – B&T BU01 module based on Decawave DW1000 chip; IEEE802.15.4-2011 UWB compliant wireless transceiver module with a precision of 10cm indoors, a data rate of up to 6.8 […]

December 20, 2021January 20, 2023 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

TTGO T-CAN485 – An ESP32 board with RS485, CAN bus interfaces

LilyGO is regularly bringing ESP32 boards to market for specific applications, and their latest TTGO T-CAN485 connects ESP32 to CAN bus and RS485 industrial control interfaces. The board also takes 5 to 12V power input via a 2-pin terminal, comes with a microSD card for data storage, a USB Type-C port and CH340K serial chip for programming and debugging, plus a 12-pin GPIO header, some buttons, and an RGB LED. TTGO T-CAN485 board specifications: SoC – Espressif System ESP32 dual-core processor @ up to 240 MHz with 2.4 GHz Wi-Fi, Bluetooth 4.2 LE connectivity Storage – 4MB flash, microSD card socket Industrial control interfaces CAN bus via 3-pin terminal block RS485 via 3-pin terminal block Expansion – Unpopulated 12-pin header with 8 GPIOs configurable as UART, SPI, I2C, plus VDD, GND Debugging – USB-C port for serial access via CH340K USB to TTL chip Misc- Reset and Boot buttons, WS2812 […]

December 15, 2021September 14, 2022 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

RIDEN RD6012P USB and WiFi DC power supply connects to your PC or smartphone

Bench DC power supplies are usually adjusted with some buttons and rotary encoders, but RIDEN RD6012P DC power supply can be controlled from your PC via USB, and there’s RD6012P-W model that adds a WiFi module to adjust parameters from a smartphone running Android or iOS. Besides the “smart” functions, the bench power supply supports 0V to 60V voltage range and up to 12A current for a maximum of 720W output power and comes with an HD color display with 5 digits for each voltage, current, and power measurement, and a setup menu. RIDEN RD6012P(-W) power supply specifications: Display – 2.4-inch color HD display with adjustable brightness Host interface – Micro USB port and optional WiFi module (fitted to RD6012P-W model) Input voltage – 7 – 70.00V with 0.01V resolution, ±(1% + 5 digits) accuracy Output voltage – 0 – 60.000V with 0.001V resolution, ±(0.5‰ + 4 digits) accuracy Output […]

December 14, 2021December 14, 2021 by Jean-Luc Aufranc (CNXSoft) - No Comments

Unsurv offline – An ESP32 GNSS receiver board with NFC, accelerometer (Crowdfunding)

Unsurv offline is a compact and lightweight board with ESP32 WiSoC, a GNSS receiver, an accelerometer, and NFC capabilities to help developers/users collect and analyze location data in a privacy-friendly way. Unsurv Technologies initially developed the board to better understand offline video surveillance with OpenStreetMap (OSM) data. It does so by using a database of camera locations from the OSM on the SD card, “counts” surveillance cameras as you walk past them, and you can then transmit data via NFC and visualize it on your smartphone. The accelerometer is used to wake up the board from deep sleep upon detection of motion. The company has now made the board open-source and other applications are also possible. Unsurv offline specifications: Wireless modules TTGO T-micro32 WiFi 4 and Bluetooth 4.2 module based on ESP32-PICO-D4 SiP with dual-core ESP32 processor, 4MB FLASH, ceramic antenna U-blox CAM-M8C (aka u-blox M8) module with concurrent reception […]

December 13, 2021September 10, 2022 by Project Team - 21 Comments

Blink an LED on ESP32 board with Tuya Link SDK

Tuya is an All-in-one IoT Platform that enables the user to build smart IoT solutions by connecting devices efficiently, securely, and reliably. This is a getting started article to set up the Tuya platform with the Espressif’s ESP32 boards via tuya link SDK. Further, we use it to control an LED through an Android device. When the switch in the Tuya Smart App is turned ON, the LED connected to the ESP32 board glows and vice versa. Prerequisites Hardware: ESP32 board LED with suitable ballast resistor Breadboard, micro-USB cable, and connecting wires Software: Tuya Account: Tuya IoT Platform (Web) Tuya Account: Tuya Smart Application (Android) Python 3.x Arduino IDE GitHub Link: https://github.com/JayeshRajam/Tuya-ledapp.git Hardware Connections for Tuya Link SDK The ESP32 board is placed on a breadboard. The positive terminal of the LED is connected to digital pin 5 of the ESP32 board and the negative terminal is connected to the […]

December 12, 2021 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

Develop USB Host and Device applications with ESP32-S3-USB-OTG board

ESP32-S series chips like ESP32-S2 and ESP32-S3 come with a USB OTG interface, and Espressif unveiled the ESP32-S3-USB-OTG board last September in a post entitled “ESP-USB: Espressif’s Wireless Communication Solution“, where they mostly focused on USB code samples with documentation in Chinese only and provided few details about the board itself. But I browsed the company’s official Aliexpress store earlier this week, and I noticed ESP32-S3-USB-OTG board was up for sale for $35 plus shipping, with additional information now available, so let’s have a closer look. ESP32-S3-USB-OTG board specifications: Wireless module – ESP32-S3-MINI-1-N8 module with ESP32-S3 dual-core Xtensa LX7 processor with WiFi 4 and Bluetooth 5.0 connectivity, 8MB QSPI flash Storage – MicroSD card socket Display – 1.3-inch color LCD USB 1x Full-speed USB host port 1x Full-speed USB slave port 1x Micro USB port for debugging (UART console) Expansion – 14 pads with 6x GPIO, JTAG, 3.3V and GND […]

December 7, 2021February 6, 2022 by Jean-Luc Aufranc (CNXSoft) - 22 Comments

Review of an ESP32-based BLE to MQTT gateway – Part 1: GL.inet GL-S10 unboxing and teardown

GL.inet introduced the GL-S10 BLE to MQTT IoT gateway last month with an ESP32 module offering WiFi and Bluetooth connectivity, as well as Ethernet and PoE support. I got offered a sample for review, and just received it together with the optional BLE beacon. So today, I’ll first have a look at the content, and check out the hardware with a teardown. GL.inet GL-S10 unboxing The package shows us the main features with Bluetooth LE 4.2, WiFi, PoE, and external antenna, with GL-S10 described as a BLE IOT GATEWAY connecting IoT devices to the Cloud. The gateway ships with a getting started guide, an antenna, a USB cable for power, as well as the beacon which we can see with a 3M stick tape. On one side, we have the RJ45 connector for Ethernet and a micro USB port for power, while the other side features a reset button, plus […]

December 4, 2021December 4, 2021 by Jean-Luc Aufranc (CNXSoft) - No Comments

ESP32-C3 AWS IoT ExpressLink module & devkit aim to ease connection to AWS IoT services

Amazon and Espressif have launched another wireless module with the ESP32-C3 AWS IoT ExpressLink module together with a development kit supporting out-of-the-box AWS IoT connectivity, following their earlier collaboration with the launch of the ESP32-PICO-V3-ZERO Alexa Connect Kit Module last summer. Also called the “ESP32-C3-MINI-1-N4-A”, the ESP32-C3 AWS IoT ExpressLink module implements the AWS IoT ExpressLink specification and provides AWS IoT Core connectivity to a host MCU via AT commands over a UART interface. Pre-provisioned and pre-programmed with ease integration the module supports WiFi configuration, messaging, OTA, and device management. The compact (16.6 x 13.2mm) ESP32-C3 module is currently offered as part of the ESP32-C3-AWS-ExpressLink-DevKit development board following the Arduino Zero board form factor allowing it to be plugged into the Arduino board, or easily connect to other host systems such as the Raspberry Pi. The goal is to simplify the deployment of IoT solutions removing the need for […]