Waveshare ESP32-H2-DEV-KIT-N4-M – A Low-cost ESP32-H2 development board going for $6.65

Waveshare ESP32 H2 DEV KIT N4 M Dev Board

The Waveshare ESP32-H2-DEV-KIT-N4-M is a development board based on the ESP32-H2, available for only $6.65 on Aliexpress, but you’ll also find it on Amazon and Waveshare’s official store. This is a significant price drop compared to last year’s official Espressif ESP32-H2-DevKitM-1 board, which was priced at $10 without including shipping costs and with a similar design. In 2021, Espressif Systems introduced the ESP32-H2 to the world. However, it wasn’t until 2023 that they released their first development board. Since then, there haven’t been many products built around this new module. Some exceptions include the Olimex ESP32-H2-DevKit-LiPo, LILYGO T-Panel, and the ESP Thread Border Router/Zigbee Gateway board, all of which feature the ESP32-H2 chip. Waveshare ESP32-H2-DEV-KIT-N4-M specifications: Wireless module – ESP32-H2-MINI-1 MCU – Espressif Systems ESP32-H2 32-bit RISC-V microcontroller at up to 96 MHz with 320 KB SRAM, 128 KB ROM, 4 KB LP memory, Bluetooth 5.2 LE/Mesh, and 802.15.4 (Zigbee/Thread/Matter) radios. […]

Waveshare RP2040-BLE is a Raspberry Pi RP2040 module with Bluetooth LE connectivity


If you could not care less about WiFi, the Waveshare RP2040-BLE module combines a Raspberry Pi RP2040 microcontroller with an unnamed Bluetooth 5.1 dual-mode chip, and supports a USB-C add-on board useful during development. There are several Raspberry Pi RP2040 boards with a WiFi and Bluetooth module including the Raspberry Pi Pico W, but if you are only interested in using Bluetooth, the RP2040-BLE board from Waveshare may be more power-efficient and its design may be more suitable for integration into products. Waveshare RP2040-BLE specifications: MCU – Raspberry Pi RP2040 dual-core Arm Cortex M0+ microcontroller up to 133 MHz with 264KB of SRAM Storage – 2MB of onboard Flash memory. Connectivity Bluetooth 5.1 dual-mode function (BLE and classic) Controlled by serial AT commands Ceramic antenna Expansion 24x through and castellated holes with 14x multi-function GPIO pins. 2x SPI, 2x I2C, 2x UART, 3x 12-bit ADC, 14 x PWM FPC connector […]

SB’s Dual Roundy and Squary Displays are powered by RP2040 or ESP32-S3 microcontrollers (Crowdfunding)

Dual Display Modules Roundy and Squary by SB Components

SB-Components has launched Dual Roundy and Dual Squary display modules powered by Raspberry Pi RP2040 or ESP32-S3 microcontrollers. These compact modules feature a 6-DoF IMU, interchangeable displays, and multiple storage and connectivity options. The Dual Roundy is equipped with two 1.28-inch round displays, with a 240 x 240 resolution, and uses the GC9A01 display driver IC. In contrast, the Dual Squary features two 1.54-inch square displays with a 240 x 240 resolution but utilizes the ST7789 display driver. Both displays offer a choice between a Raspberry Pi RP2040 MCU and the ESP32-S3-WROOM-1 module catering to different needs in performance and wireless capabilities. We’ve previously explored other rounded displays like the MaTouch ESP32-S3, T-RGB ESP32-S3, and ESP32-S3 Round SPI TFT. We’ve also examined other products from SB Components such as the Cluster HAT, PiMecha, PiTalk 3G HAT, and Micro RP2040. Feel free to check these out for more interesting tech insights. […]

8Devices Noni M.2 WiFi 7 module supports FirmUx embedded Linux distribution

8devices Noni M.2 WiFi 7 module

8Devices Noni is a family of M.2 A+E-Key WiFi 7 modules built on the QCN9274/QCN6274 chipsets, delivering up to 11 Gbps link rate in 4×4 MIMO or split 2×2 + 2×2 configurations, and supporting FirmUX embedded Linux OS. The Noni modules support Multi-Link Operation (MLO) for simultaneous communication on different frequencies and adaptive interference puncturing in order to maintain performance in various environments and the QCN9274-based variants also support advanced features such as Provisioned Multi-Link, Dense deployment, and Location and RF sensing. 8devices Noni specifications: All the Noni modules support a 2-lane PCIe Gen 3 interface connection to the host device. 8devices Noni modules support the FirmUX embedded Linux platform that provides developers a choice between fully open-source or proprietary Qualcomm drivers. The OS enables WPA3 security, comes with a responsive UI dashboard, supports Wireguard VPN, and the company claims up to 34 percent improvement over OpenWrt on the earlier […]

Tiny Raspberry Pi RP2040 module connects to USB-C + buttons board via FPC connector

Raspberry Pi RP2040 module with FPC USB-C board

Waveshare RP2040-Tiny is another tiny Raspberry Pi RP2040 module that joins others like Pimoroni Tiny 2040, DFRobot Beetle RP2020, or Solder Party RP2040 Stamp, but with a twist as the solderable module features an FPC connector in order to optionally connect a separate board with a USB-C port as well as Boot and Reset buttons. This design enables the convenience of having a USB-C port for power and programming, plus the Reset and Boot buttons during firmware development, and developers can only keep the tiny and ultrathin module when integrating it into a project or product. Alternatively, there may be designs that benefit from having the USB-C port located further away from the main module with all I/Os, and it can also facilitate troubleshooting when the product is already integrated into a product. Waveshare RP2040-Tiny specifications: MCU – Raspberry Pi RP2040 dual-core Cortex-M0+ microcontroller @ up to 133Mhz with 264kB […]

u-blox MAYA-W3 industrial wireless module supports WiFi 6/6E and Bluetooth 5.4 with LE Audio

u-blox MAYA-W3

We’ve also covered two IoT-focused WiFi 6 and Bluetooth LE chips in the last week with Synaptics SYN43711 chipset and Gigadevice GD32VW553 RISC-V WiSoC, but there’s more and u-blox has recently introduced the MAYA-W3 WiFi 6/6E and Bluetooth 5.4 module with LE Audio support and designed for industrial applications. The MAYA-W3 module offers some flexibility as it’s designed on the upcoming Infineon AIROC CYW5551x WiFi 6E and Bluetooth 5.4 chip family supporting 2.4 GHz only (CYW55511), 2.4 GHz and 5 GHz (CYW55512), and a 2.4 GHz, 5 GHz, and 6 GHz with the tri-band CYW55512 chipset. u-blox also provides three antenna options for each model with two U.FL connectors, two antenna pin connectors, or an embedded PCB antenna. u-Blox MAYA-W3 specifications: Chipset – Infineon AIROC CYW5551x CYW55511 for 2.4 GHz WiFi 6 CYW55512 for 2.4 and 5 GHz WiFi 6 CYW55513 for 2.4, 5, and 6 GHz WiFi 6E Wireless […]

Pico QwiicReset board adds Reset button and Qwiic connector to Raspberry Pi Pico

Pico QwiicReset

Pico QwiicReset is a tiny add-on board for the Raspberry Pi Pico that adds a Reset button as well as the Qwicc connector to more easily connect I2C modules to the popular MCU board. The lack of a Reset button on the Raspberry Pi Pico has always been an issue since the reset pin is used to flash the firmware, so people have tried various ways to add a Reset button to the Pi Pico board. The Pico QwiicReset is like an extension of the Pimoroni “Captain Resetti” button with an extra Qwiic connector. The Pico QwiicReset board is shown soldered to a Raspberry Pi Pico board above, but it’s also compatible with the Raspberry Pi Pico W and it works with or without headers soldered to the board. But you may noticed the Debug header is partially covered on Pico W, which means the add-on board cannot be used […]

Sony energy harvesting module generates power from electromagnetic wave noise

Sony energy harvesting module

Sony Semiconductor Solutions Corporation (SSS) has developed an energy harvesting module that uses electromagnetic wave noise energy to power IoT devices. The new module leverages Sony’s tuner development process to generate power from electromagnetic wave noise from robots inside factories, monitors and lighting in offices, monitors and TVs in stores and homes, etc. in order to provide a stable power supply needed to run low-power IoT sensors and communications equipment. The tiny 7×7 mm module uses the metal parts of electronic devices that serve as the source of electromagnetic wave noise as part of an antenna and employs a rectifier circuit in order to convert electromagnetic wave noise in a range of several Hz to 100 MHz into electrical energy and supply power to low-power consumption IoT sensors and communications equipment or to charge batteries. The module harvests energy from electronic equipment that generates a significant amount of electromagnetic wave […]

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