Articles Tagged “Microcontroller”
37 articles found
Waveshare ESP32-C5 Touch LCD 3.5 Kit Adds Wi-Fi 6 and Zigbee
Waveshare's ESP32-C5-Touch-LCD-3.5 pairs dual-band Wi-Fi 6, Zigbee and Thread with a 3.5-inch touchscreen and 8 MB PSRAM, from $31.99 direct.
NXP FRDM-IMXRT1186 Board Packs Four Ethernet Ports for $85
NXP's $85 FRDM-IMXRT1186 pairs an 800 MHz Cortex-M7 with a 300 MHz Cortex-M33 and four Ethernet ports, including 2 Gigabit TSN, for industrial builds.
ESP-Mosaico: First Look at an ESP32-S31 Square-Screen Kit
ESP-Mosaico pairs the dual-core RISC-V ESP32-S31 with a 2.16-inch 480x480 touch display, Wi-Fi 6 and Thread. It lists for about $117 from resellers.
KryonOS: What an ESP32 JavaScript Desktop Can Run Now
KryonOS adds a touchscreen desktop and JavaScript apps to ESP32 boards. See the supported display setup, Wi-Fi app installs and hardware constraints.
MemBrowse: How to Catch Firmware Memory Growth Early
MemBrowse tracks firmware RAM and flash across commits, with local analysis and pull-request reports that help developers catch memory growth early.
Gearotons M17: A $20 Open-Source Servo for Pi Robots
The Gearotons M17 packs a motor, driver, controller and encoder into one NEMA 17 body from $20, with Python libraries for Raspberry Pi and Arduino.
Raspberry Pi Pico Powers a DIY Blood Lab Centrifuge
A Raspberry Pi Pico, a drone motor and roughly $50 in parts drive an open-source centrifuge built to spin blood at 400 g for cancer research.
Renesas RZ/G3L MPUs Hit 1 mW Standby With Cortex-A55
Renesas' new RZ/G3L and RZ/G3SE run four Cortex-A55 cores at 1.2 GHz and drop to roughly 1 mW in deep standby, from $14.28 in volume pricing.
ESP32-S3 Runs Linux 6.11 With 3.7MB of RAM to Spare
Release 0.8 of the native ESP32-S3 Linux port fixes the crash that hit one boot in ten and halves the memory cost of every fork. One file to flash.
Alif StartKits Put an Ethos-U55 NPU on a $50 Board
Alif's Balletto B1 and Ensemble E1C StartKits pair a 160MHz Cortex-M55 with an Ethos-U55 NPU, two mics and a camera header for $49.99.
FREE-WILi 2 Packs Two RP2350s and an FPGA in One Tool
The $400 FREE-WILi 2 open hardware multitool pairs two RP2350 chips, an ESP32-C5, an iCE40 FPGA and a Raspberry Pi CM0 running 64-bit Linux.
ESP32-C5 Pico Brings Wi-Fi 6 to the Pico Footprint
Waveshare's ESP32-C5 Pico packs dual-band Wi-Fi 6, Bluetooth 5 and Thread into a Raspberry Pi Pico-compatible dev board starting at just $8.99.
XIAO Plus Boards Add 16 GPIOs and Battery Charging
Seeed's XIAO SAMD21 Plus and RP2040 Plus keep the same thumbnail footprint but add up to 16 GPIOs and onboard Li-ion battery charging, from $4.90.
ArduinoCore-Zephyr 1.0 Adds VENTUNO Q and 11 Boards
ArduinoCore-Zephyr 1.0.0 leaves beta with Zephyr 4.4.1, VENTUNO Q support, Nicla Vision camera capture and 40+ fixes across eleven Arduino boards.
Offline Wikipedia Now Runs on a Cheap ESP32 Display
Alun Morris reformatted Kiwix offline Wikipedia builds for the ESP32 Cheap Yellow Display, putting Simple English articles and images on an SD card.
USB-C Deskradar Turns an ESP32-C3 Into Flight Radar
A 1.28-inch round display and an ESP32-C3 make a live ADS-B flight tracker for about $27 — or under $10 if you build it from parts yourself.
Nordic nRF93M1 Dev Kit Brings LTE Cat 1 bis for $60
Nordic's nRF93M1 development kit pairs a 10 Mbps LTE Cat 1 bis modem with an nRF54L15 host MCU, and prices start at $60 with a trial SIM card.
ESP32-S31 Linux BSP Boots Real Linux on 16MB PSRAM
Espressif released a Linux 6.18 BSP developer preview for the ESP32-S31, fitting a bootable image into roughly 13.7MB of flash on a $10-class chip.
NXP MCX C15 MCUs Pack 16-Bit Analog Under 60 Cents
NXP's MCX C15 and C16 Cortex-M23 MCUs start under 60 cents, pair a 16-bit ADC with an on-chip op-amp, and idle at 320 nA in deep power down.
NXP MCX A5 MCUs Pair Post-Quantum Boot With Ethernet
NXP's MCX A5 pairs a 240 MHz Cortex-M33 with an integrated 10BASE-T1S PHY and post-quantum secure boot, sampling now and available in Q4 2026.
LILYGO T-Echo Lite Kit Adds a Keyboard for LoRa
LILYGO's T-Echo Lite Kit pairs an nRF52840 LoRa and GPS board with a backlit keyboard shield and speaker for off-grid messaging, from $65.34.
Which ESP32 Variant to Choose: A 2026 Buyer's Guide
Nine ESP32 variants, one decision. Compare S3, C3, C5, C6, H2, and P4 by cores, RAM, radios, and price to pick the right chip for your project.
Silicon Labs BG2B Sleeps at 1.1uA on Bluetooth 6
Silicon Labs' BG2B is its lowest-power Bluetooth LE part yet, holding 1.1uA deep sleep with RAM retention and cutting active MCU current by around 15%.
ESP32-S3 Runs a 28.9M-Parameter LLM at 9 Tokens/s
A developer got a 28.9M-parameter language model generating 9 tokens per second on an $8 ESP32-S3, using 4-bit weights and per-layer embeddings in flash.
NXP RW610FML Module Packs Wi-Fi 6 and BLE 5.4 in 25mm
NXP's RW610FML packs Wi-Fi 6, Bluetooth LE 5.4 and a 260 MHz Cortex-M33 into a 25.5 x 18 mm module rated for -40C to 85C industrial operation.
SensWear Open-Source Wearable Kit Ships With 4 Sensors
SensWear is an open-source nRF54L15 wearable platform with four swappable sensor boards, MIT-licensed firmware, and a EUR 849.99 full bundle.
Waveshare RP2350 Board Adds Ethernet and PoE for $14
Waveshare's RP2350-POE-ETH puts hardwired Ethernet and optional 802.3af PoE on a 63mm Raspberry Pi RP2350 board with 20 GPIO, starting at $13.99.
Low-Power Wireless MCU Guide: nRF54L, ESP32, RP2350
Compare nRF54L15, ESP32-C6, and RP2350 for battery-powered projects: radios, sleep current, memory, price, and which to pick for each build.
nRF54L15 Discovery Board Snaps Into Two Usable Boards
Icy Electronics' $27.19 nRF54L15 Discovery packs a Cortex-M33, a RISC-V coprocessor, and a snap-off CMSIS-DAP debugger you can reuse separately.
Moonshine Puts Offline Voice AI on a Pico 2 Chip
Moonshine AI fit a full offline voice pipeline — detection, speech-to-text, and neural TTS — onto a Raspberry Pi Pico 2, using just 3.6 MiB of flash.
ART-Pi II Pairs a 600 MHz Cortex-M7 With a 2.5D GPU
The $45 ART-Pi II runs a 600 MHz STM32H7R7 with a NeoChrom 2.5D GPU, 32MB HyperRAM, Wi-Fi 4 and a Raspberry Pi-compatible 40-pin header.
moddo Pinch Is the Smallest Arduino Board Yet at 11mm
The moddo Pinch is a 10.9 x 10.5 mm Arduino-compatible board that fits inside a USB-C shell, with 12 GPIO, 11 PWM channels, and pre-orders open at $15.90.
Moddo Pinch Is the Smallest 32-Bit Arduino Board Yet
The Moddo Pinch fits a 32-bit SAMD11 Arm chip into a 10.9x10.5mm body — the smallest Arduino-compatible board, with pre-orders open at $15.90.
ELM11-Feather Makes FPGAs Lua-Simple for $39
The $39 ELM11-Feather puts a Gowin FPGA and a 75 MHz soft-core into a Feather board you program in Lua, with MIT-licensed firmware coming.
RP2350B 'Bells & Whistles' Board Packs a Debugger and HDMI for $30
The $30 RP2350B 'Bells & Whistles' dev board bundles an onboard debugger, HDMI video out, and microSD into one open-source maker board — removing friction for RP2350 projects.
Waveshare's $11 RP2350B-Plus-W Packs Wi-Fi and 41 GPIOs Into a Pico-Sized Board
Waveshare's RP2350B-Plus-W puts 41 GPIOs, 16MB flash, USB-C, and official Raspberry Pi Wi-Fi into a Pico 2 W form factor for under $12 — a maker's dream.
Waveshare RP2350B-Plus-W: A Pico 2 W-Sized Board With WiFi and 41 GPIOs
The Waveshare RP2350B-Plus-W packs WiFi, dual ARM/RISC-V cores, and 41 GPIOs into a Raspberry Pi Pico 2 W-sized maker board for around $10.99.