M5Stamp C3

M5Stamp C3 RISC-V board supports WiFI 4, Bluetooth 5.0 Long Range and 2 Mbps bitrate

It was only last month that M5Stack launched the M5Stamp Pico module based on an ESP32-PICO-D4 SiP and heat-resistant plastic shell, but M5Stamp C3 board is already out with most of the same specifications and features but an ESP32-C3 RISC-V SoC replaces the ESP32 dual-core Xtensa processor. M5Stamp C3 offers WiFi 4 and Bluetooth 5.0 with high bitrate and long-range connectivity and comes with the same heat-resistant plastic shell, but the company also highlights the RSA-3072-based secure boot and the AES-128-XTS-based flash encryption as a more secure way to address Bluetooth security concerns. M5Stamp C3 specifications: WiSoC – ESP32-C3FH4 32-bit single-core RISC-V processor @ up to 160 MHz, with 384KB ROM, 400KB SRAM, 8KB RTC SRAM, 4MB embedded flash, WiFI and Bluetooth Connectivity 2.4 GHz WiFi 4, 20 MHz and 40 MHz bandwidth, IEEE 802.11 b/g/n protocol, up to 150 Mbps Bluetooth 5, Bluetooth mesh, with supports for 125 Kbps, […]

HarmonyOS development board

HarmonyOS development board shows up for $11

Last year, we noted the Hisilicon Hi3861 based HiSpark WiFi IoT development board with supports LiteOS and HarmonyOS that was available in China for just under $10, or as part of a devkit with baseboard and modules for around $60. Although not very practical, buying from Taobao was possible, but there’s now what appears to be a new revision of the Hi3861V100 based HarmonyOS development board in a wider form factor on Banggood for $10.99. Hi3861 development board specifications: MCU – Hisilicon Hi3861V100 32-bit RISC-V microcontroller @ up to 160 MHz with 352 KB SRAM and 288 KB ROM, 2 MB flash memory, and WiFI 4 connectivity; QFN-32 5x5mm package WiFi 802.11b/g/n standard up to 72.2 Mbps @ HT20 2.4 GHz frequency band (ch1-ch14). Station (STA) and access point (AP) modes with up to 6 clients for the latter WiFi mesh with up to 256 nodes Security – WPA, WPA2 […]

ArmSoM RK3588 AIModule7 NVIDIA Jetson Nano-compatible SOM
Jetson nano rack mount

3U rack mount takes up to 12 NVIDIA Jetson Nano/Xavier NX boards

Myelectronics.nl has launched a 19-inch 3U rack mount taking up to twelve NVIDIA Jetson Nano or Jetson Xavier NX boards building on its experience with rack mount for Raspberry Pi introduced last year. The new model also includes front removal mounting systems so that you can replace a Jetson board without having to completely remove the rack mount, and even without having to power off the remaining boards since the boards would have to be powered from the DC jack or (not recommended) the Micro USB port on the front panel. PoE is probably not an option, albeit available on the Nano board, due to mechanical constraints. Specifications listed for the rack mount: Supported SBCs NVIDIA Jetson Nano 2GB Developer Kit NVIDIA Jetson Nano Developer Kit NVIDIA Jetson Xavier NX Developer Kit 12x front-removable trays with screw set, fast click buttons for easy removal Dimensions – 13.5 cm (H) x […]

Tinker Board 2S

ASUS Tinker Board 2S SBC launched for $120 and up

ASUS unveiled the Tinker Board 2 SBC with faster a Rockchip RK3399/OP1 processor together with the ASUS Tinker Board 2S board that adds a 16GB eMMC flash last October without pricing information. The good news is that the 2GB RAM version of Tinker Board 2S is now available on Amazon and Aliexpress for $120 and up. Note you’ll get a 5% discount if you are a follower on Aliexpress for a total of $132.99 including shipping. Compared to the first Tinker Board, the new boards are also offered with up to 4GB LPDDR4 RAM, an additional video output option with USB-C DisplayPort Alt mode, an upgrade to USB 3.0 ports and WiFi 5, RTC battery support, and a more stable 12V to 19V DC input. Here’s a reminder of Tinker Board 2S specifications: SoC – Rockchip RK3399 (OP1) hexa-core processor with 2x Arm Cortex-A72 cores up to 2.0 GHz, four […]

40 esp-01 modules firmware update

Board for 60 ESP-01 modules that update firmware from Github, mine “Duino Coins”

When I first saw the large ESP-01 V1.0 board on Facebook, I thought it was designed to speed up firmware updates of up to 60 ESP-01 modules. The developer, Thanormsin, just explained it would take 5 to 24V DC input to power all ESP8266 attached to it. It looks cool to have so many But there was no PC interface to update the firmware, so it did not make sense to me, even if it could be used for OTA firmware updates, as the first time, one would have to manual update the firmware. So I discussed with Thanormsin, and he explains to me his initial arrangement was a cable mess. That is why he designed a board to make it neater, and easier to manage. Each ESP-01 module can update firmware from the Internet, more especially from Github, as each time a new firmware version is uploaded to Github, […]

Jupiter Nano

Jupiter Nano – Tiny Cortex-A5 board runs Linux or NuttX RTOS (Crowdfunding)

Jupiter Nano looks like one of those small MCU boards, but instead of a microcontroller, it packs a 500 MHz Microchip SAMA5 Cortex-A5 processor with 128MB RAM capable of running Linux or NuttX operating systems. The board reminds me of the Adafruit Feather compatible Giant Board made by Groboards, with the same system-in-package, but Juniper Nano offers more I/Os via 48 through holes, and its size is said to be similar to Teensy 4.1 board (but not quite). Jupiter Nano specifications: SiP – Microchip SAMA5D27C-LD1G with Cortex-A5 processor running at 498 MHz, 128MB LPDDR2 DRAM Storage – MicroSD card socket (bootable) USB – 1x Micro USB 2.0 host/device port, 1x USB 2.0 host on header Expansion – 2x 24-pin headers with GPIOs, USB, SPI, I2C, up to 4x Flexcom interfaces configurable as SPI, UART or I2C Programming – JTAG port, Micro USB 2.0 FS debug console via MCP2200 USB-UART converter […]

Rockchip RK3568, RK3588 and Intel x86 SBCs and SoMs in 2025
ZJ-012 ATX Power Supply single board computer

$5 board eases ATX power supply connection to single board computers

Many people have ATX power supplies from older desktop PCs that they may want to reuse with Arduino boards, Raspberry Pi, or other single board computers. It’s indeed possible to do so by trimming some cables and making a circuit to protect the board from over-voltage or over-current. But ZJ-012 adapter board offers a simpler solution with a 24-pin header for the ATX power supply, terminal blocks for connection to the target board, some fuses for protection, and a header to connect an on/off button. JZ-012 (also known as JZ-024) ATX power adapter board’s key features and specifications: Power Input – 20-pin or 24-pin computer ATX power supply Power output – 9-pin terminal block with +3.3V, +5V, -12V, +12V, +5V, GND with fuses for each power outputs On/Off control – Toggle switch or header for external button/switch (shorted for power on) Misc – Power indicator (red LED) Dimensions – 70 […]

CANLite ESP32 CAN Bus board

CanLite ESP32 board for CAN Bus hacking support up to two high-side switches

Voltlog’s CanLite is not the first ESP32 CAN bus board we’ve covered here at CNX Software, having written about Olimex ESP32-EVB and CAN32 boards a few years ago. But the open-source hardware, compact CanLite board offers an alternative for CAN bus hacking with a built-in automotive-grade DC-DC converter as well as an optional two-channel high-side automotive-grade switches capable of switching up to 6A per channel. CANLite key features and specifications: Wireless module – ESP32-WROOM-32D module with Espressif ESP32-D0WD dual-core Tensilica processor, 4MB SPI flash, Wi-Fi 802.11 b/g/n up to 150 Mbps, Bluetooth 4.2 LE Terminal block for CAN Bus (ISO 11898-2 standard) up to 1Mbps via SN65HVD231 CAN transceiver. Output – High-side switching of the VBAT input up to 6A. (only if the option is purchased during checkout). Programming – 6-pin JST-SH VoltLink pin header Power Supply – 12V/0.5A via terminal block Dimensions – TBD The ESP32 CANLite board supports […]

Boardcon CM3588 Rockchip RK3588 System-on-Module designed for AI and IoT applications