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SB Components LoRaWAN gateways and nodes are made for Raspberry Pi and ESP32 boards (Crowdfunding)

UK-based hardware developer, SB Components, has designed a new LoRaWAN product series (gateways and nodes) for the Raspberry Pi SBCs, Raspberry Pi Pico, ESP32, and other hardware, based on RAKWireless RAK5146 and RAK3172 modules. The products are available in up to five variants (plus two relay boards) and are built to cater to hobbyists with different needs. They support several LoRaWAN server platforms including The Things Stack, Chirpstack, and Helium, with adaptive spreading factors, coding rates, and bandwidth configurations. The LoRaWAN products include: Gateways – RAK5146 LoRaWAN Gateway HAT and RAK3172 LoRaWAN Gateway HAT for the Raspberry Pi SBCs Nodes – RAK3172 LoRaWAN Module (Powered by Raspberry Pi Pico), Raspberry Pi RP2040 USB Dongle, RAK3172 LoRaWAN Module (powered by ESP32), LoRaWAN Breakout, GatePi LoRaWAN 4-Ch Relay, GatePi LoRaWAN 8-Ch Relay LoRaWAN (long-range wide access network) uses the LoRa modulation technique to transmit data over large distances. In a LoRAWAN network, […]

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Esp32_oscilloscope Arduino firmware turns your ESP32 board into a web-based oscilloscope

Bojan Jurca’s “Esp32_oscilloscope” is an open-source Arduino sketch that can transform an ESP32 board into a web-based oscilloscope that works over WiFi. We had also written about the Scoppy project to turn the Raspberry Pi Pico W into a 2-channel oscilloscope, but there’s no reason the more powerful ESP32-series microcontroller could not be used for the same purpose, and Bojan’s Esp32_oscilloscope project does just that and works with ESP32, ESP32-S2, ESP32-S3 and ESP32-C3 boards using the I2S interface for fast data sampling. The project was initially designed to demonstrate the multitasking abilities of the ESP32 microcontroller with Arduino, but this evolved into an ESP32 oscilloscope firmware. It works both with output/PWM and input signals, digital (0 or 1) and analog (0 to 4095) signals, and the web interface shows up to 736 samples per screen although the sampling rate may not be completely constant all the time. To install it […]

ArmSoM CM5 - Raspberry Pi CM4 alternative with Rockchip RK3576 SoC
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ESP32 Qwiic Pro Mini is an ESP32 board in Arduino Pro Mini form factor

SparkFun’s latest development board, the ESP32 Qwiic Pro Mini, puts the Espressif ESP32-PICO-MINI-02 on a compact Arduino Pro Mini footprint. It also includes an onboard QWICC connector for easy interfacing with a wide range of sensors and peripherals. We have already covered other Sparkfun dev boards like DataLogger IoT, Datalogger IoT – 9DoF, and SparkFun Thing Plus Matter you can check those out if interested. Like any other ESP32 board, this also uses an ESP32 microcontroller which features a 32-bit dual-core processor, 520kB of SRAM, 2MB of PSRAM, 8MB of flash memory, and 16 kB of additional SRAM in its RTC. It supports Bluetooth 4.2 and BLE and has ADC and DAC, touch detection, PWM, TWAI, Ethernet MAC, UART, SPI, SDIO, I2C, and I2S interfaces. As reported in a Hackster article, the board also features a Qwiic Connector for solderless connections to sensor boards and add-ons, positioned at a 90-degree angle […]

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ESP32-S3 based Arduino Nano ESP32 board supports Arduino and MicroPython programming

The Arduino Nano ESP32 is an ESP32-S3-based WiFi and Bluetooth microcontroller board designed for IoT applications for hobbyists and enterprise use cases. The new Nano board comes with 8 MB  PSRAM and 16 MB flash storage and can be programmed with either the Arduino or MicroPython languages. It’s not the first ESP32 board from Arduino, as the Nano RP2040 Connect pairs a Raspberry Pi RP2040 MCU with an ESP32 module from u-Blox and the just-released Arduino UNO R4 WiFi marries a Renesas RA4M1 Arm Cortex-M33 MCU with an ESP32-S3-MINI-1 module. But the Arduino Nano ESP32 is different since it’s the first ESP32 board from Arduino where the Espressif chip is the only microcontroller onboard and handles both wireless connectivity and GPIOs. Arduino Nano ESP32 specifications: Wireless module – u-Blox NORA-W106-10B with MCU –  ESP32-S3 dual-core Xtensa LX7 microcontroller @ up to 240 MHz with vector extensions, 512KB SRAM, 384KB ROM, […]

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Meet the $1,000 ESP32 board with 512 GPIOs (12V/24V)

KinCony IoT’s KC868-A566 is an ESP32 WiFi & BLE IoT board with a massive 512 GPIOs, more specifically with 256 12V/24V digital outputs and 256 digital inputs that should meet most people’s requirements, except for its price, as it is currently selling for $1,000 on Aliexpress. The board is based on ESP32-WROOM-32E, and besides the massive numbers of GPIOs, also adds four analog input ports, an Ethernet port, and an RS485 connector. The company also made sure it can run ESPHome open-source firmware and integrates well with Home Assistant open-source home automation framework. KinCony IoT KC868-A566 board specifications: Wireless module – ESP32-WROOM-32E with ESP32 dual-core microcontroller 4MB flash 2.4 GHz WiFi and Bluetooth LE connectivity, built-in PCB antenna, fully compatible with ESPHome firmware Ethernet – 100/10Mbps Ethernet via vertical RJ45 jack USB – 1x USB Type-C port Serial – RS485 interface I/Os 256x MOSFET outputs (12V/24V 5000mA per channel) with […]

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Wokwi – An Arduino, Raspberry Pi Pico, and ESP32 board simulator

Wokwi is an online simulator for Arduino, Raspberry Pi Pico, and ESP32 boards, or even your own custom microcontroller board designed to learn programming without the actual hardware. My girlfriend’s daughter has just attended a free 5-day online course about AI, IoT, ESP32, MicroPython, and more organized by King Mongkut’s Institute of Technology Ladkrabang (KMITL) and IMAKE Innovation, a STEM education company in Thailand. I was told they had some homework for ESP32 as part of the course, so I asked her whether she wanted an ESP32 board. But she said no need. So then I asked how to program the ESP32 without the board, or do they have a simulator? And indeed I was sent the screenshot below along with a blurry video showing the LED display updated as the program runs in the web browser. Considering ESP32 boards are so cheap and external modules or a breadboard are […]

Rockchip RK3568/RK3588 and Intel x86 SBCs
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ESP32 MPY-Jama is a MicroPython IDE for ESP32 boards

ESP32 MPY-Jama is a cross-platform MicroPython IDE specifically designed for ESP32 boards with a file manager, a  REPL terminal, real-time dashboards, and various ESP32-specific features. The IDE is an open-source Python program using pyWebView and pySerial plus some JavaScript for the user interface, and the developer of the program, Jean-Christophe Bos, provides binaries for Windows 64-bit and macOS 64-bit Arm or x86. It’s also possible to use it in Linux but needs to be built from source. Some of the key features of the ESP32 MPY-Jama IDE include: MicroPython code editor with syntax highlighting REPL interface Access to information dashboards with real-time data about WiFi and Bluetooth connections, system info with GPIO status, CPU frequency, memory and SPI flash details Easy 2-click methods to connect to WiFi and create an access point Graphical interface to install a new firmware through esptool Ability to create, import, and run “Jama Funcs” mini-applications […]

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433 MHz is not dead! Using an ESP32 board with LoRa module to talk to 433 MHz sensors

CNXSoft: This is a guest post by Florian Robert (1technophile) of the OpenMQTTGateway project about using a 433 MHz LoRa transceiver on an ESP32 board for home automation, specifically to talk to 433 MHz sensors Everyone is talking about Matter, Bluetooth, Zigbee, and Zwave, but before these complex communication technologies, we had one simple, robust one that our sensors and devices used to leverage: 433MHz. It may be too simplistic to talk about 433 MHz as a technology as there are different and various usages of this frequency. You can find it being used in numerous devices around your home, from your outdoor temperature sensors, and security sensors to the tire pressure sensors in your car. If we want to be specific, we can talk about the different radio frequencies (433 MHz, 915MHz, 868MHz, 315MHz, or 350MHz) and signal modulations OOK, ASK, FSK that we encounter behind the keyword 433MHz. […]

Boardcon Rockchip and Allwinner SoM and SBC products