Not to be confused with the just-released STM32U3B5/C5 ultra-low-power MCUs, the entry-level STM32C5 Arm Cortex-M33 MCU family is designed for industrial sensors, smart home devices, electronic locks, thermostats, wearables, robotic actuators, and computer peripherals. The MCUs are manufactured using ST’s 40 nm flash process, clocked at up to 144 MHz, and feature 128 KB to 1 MB of flash and up to 256 KB of SRAM, with a dynamic power consumption of <80 µA/MHz. Key features include Ethernet, USB, OctoSPI, CAN bus, DMA, and various peripherals, including ADCs, comparators, and an op-amp. Security is also enhanced, with the series targeting SESIP3 and PSA Certified Level 3 through features such as side-channel attack-resistant crypto, Hardware Unique Keys (HUK), and a Coupling and Chaining Bridge (CCB) for secure key storage. STM32C5 key features and specifications: MCU core Arm Cortex-M33 32-bit CPU @ 144 MHz with single-precision FPU, DSP instructions, and MPU Up […]
DSG-22.6 GHz is a $1,590 open-source RF signal generator based on Atek Midas’s custom ICs (Crowdfunding)
Atek Midas, a Turkish company, has launched DSG-22.6 GHz, a high-performance, open-source RF signal generator designed to provide professional-grade frequency synthesis at a fraction of the cost of traditional benchtop equipment from manufacturers like Anritsu or Keysight. It has an operating frequency range of 0.15 GHz to 22.6 GHz and is designed for makers and production test environments for RF testing, calibration, wireless experimentation, and microwave research. The device offers 1 Hz tuning resolution, adjustable output power −15 dBm to +20 dBm, and supports linear and logarithmic frequency sweeps with configurable start/stop frequencies, step size, and dwell time. It achieves ≥40 dBc spurious and harmonic suppression on the filtered output path and features a tuning speed of <100 µs. The generator includes a capacitive touchscreen display and can also be controlled over a USB Type-C port and/or Wi-Fi. DSG-22.6 GHz specifications: Frequency range – 150 MHz to 22.6 GHz Tuning […]
Pironman 5 Pro Max Raspberry Pi 5 case gains 4.3-inch touchscreen, camera mount, speakers, microphone, and more
Pironman 5 Pro Max is the latest Raspberry Pi 5 case by SunFounder. The new enclosure adds a 4.3-inch capacitive touchscreen display, a 5MP camera module, a mount suitable for Raspberry Pi Camera Modules, stereo speakers, a USB microphone, and a 3.5mm audio jack. Besides the new features, its design is close to the Pironman 5 Max we reviewed with a Raspberry Pi 5, an NVMe SSD, and an Hailo-8 AI accelerator last June. That means it keeps black aluminum and semi-transparent black acrylic panels, offers two M.2 PCIe slots, an IR receiver, a power button, and the Tap-to-Wake feature for the OLED information display. Pironman 5 Pro Max specifications: Designed for the Raspberry Pi 5 and compatible SBCs Storage Pironman 5 Dual NVMe PiP supporting 2x M.2 2230, 2242, 2260, or 2280 NVMe SSDs at up to PCIe 2.0 x1 speeds due to switch used; RAID 0/1 support MicroSD […]
GEEKOM A5 Pro 2026 Edition Review – Part 3: Ubuntu 25.10 on an AMD Ryzen 5 7530U mini PC
After checking out the hardware with an unboxing and a teardown of the GEEKOM A5 Pro 2026 Edition mini PC, and testing it with the pre-installed Windows 11 Pro OS in the second part of the review, we will now report our experience with Ubuntu 25.10 to show how the AMD Ryzen 5 7530U mini PC performs under Linux. The Ubuntu 25.10 review includes an overview of the system, benchmarks, storage and networking (2.5GbE and WiFi 6) performance testing, and measurements of CPU temperature under stress, fan noise levels, and power consumption of the mini PC under various workloads. Ubuntu 25.10 installation We decided to install Ubuntu 25.10 in dual boot configuration alongside Windows 11. To do so, we first shrank the Windows partition (C:) to roughly half its original size, before inserting a USB drive with the Ubuntu 25.10 ISO to carry on with the installation. The installation proceeded […]
Echo Pyramid enables smart voice interaction applications on M5Stack Atom ESP32 IoT controllers
Designed for M5Stack Atom, AtomS3, and AtomS3R series IoT controllers based on ESP32 or ESP32-S3 wireless SoC, the Echo Pyramid base enables smart voice interaction applications such as far-field voice recognition, voice assistants, voice control, and more. The device features a built-in speaker, a MEMS microphone, an ES8311 HD audio codec for playback and capture, and an STM32 MCU for touch areas and RGB LED management. It’s powered via a USB Type-C port and can be expanded through a 4-pin connector for I2C modules. Echo Pyramid specifications: Supported IoT controllers – M5Stack Atom, AtomS3, and AtomS3R Microcontroller – STMicro STM32G030F6P6 32-bit Arm Cortex-M0+ CPU @ 64 MHz with 8KB SRAM, 64 KB flash Audio HD Codec – ES8311, handles playback and recording Microphone – LMA3729T381-0Y3S MEMS microphone ADC – ES7210 for microphone input Built-in speaker on the bottom of the pyramid Amplifier – AW87559 Class-D speaker driver for the speaker […]
DFRobot launches low-power, low-cost Fermion: BMV080 air quality sensor module
Just last year, we reported on the SparkFun Air Quality PM1/PM2.5/PM10 Sensor, based on the Bosch BMV080 fanless air-quality sensor and priced at around $65. DFRobot has now launched a low-cost alternative, the Fermion: BMV080, which provides the same fanless, laboratory-grade PM1, PM2.5, and PM10 sensing capabilities for just $29.90. The sensor uses laser-based light-scattering technology with fanless optical counting to detect particles as small as 0.5 μm. This avoids fan noise, dust buildup, and mechanical wear, which are common with fan-based PM sensors, and, on top of that, it has a service life of up to 10 years. It measures particulate concentrations in a 0–1000 μg/m³ range with 1 μg/m³ resolution and ±10 μg/m³ of accuracy. The sensor supports I2C and SPI interfaces, and consumes about 70 mA in continuous measurement mode with a 6 μA sleep current, making it suitable for battery-powered systems. DFRobot’s Fermion: BMV080 specifications: Sensor IC […]
WiFi and Bluetooth LE can now be used simultaneously on Arduino boards with NINA-W102 (ESP32) module
Today I learned that WiFi and Bluetooth LE could NOT be used simultaneously on Arduino boards featuring the ESP32-based u-blox NINA-W102 wireless module, impacting the Arduino Nano RP2040 Connect, Arduino MKR WiFi 1010, and Arduino Nano 33 IoT boards. It’s a long-running problem since the first Arduino board with NINA-W10 was introduced in 2018, and meant you could use WiFi or Bluetooth LE, but not both simultaneously. The good news is that the issue has finally been fixed, thanks to a new firmware for the module and new WiFi and BLE libraries. More specifically, you’ll need the following libraries and firmware: WiFiNINA library version 2.0.0 or later ArduinoBLE library version 2.0.0 or later NINA-W102 firmware version 3.0.1 or later The libraries can easily be updated in the Library Manager in the Arduino IDE, and the firmware needs to be updated with the Firmware Updater Tool in Tools > WiFi101 / […]
STM32U3B5/C5 ultra-low-power MCU features 640 KB RAM, 2 MB Flash, and HSP accelerator to run AI without batteries
STMicroelectronics has added two members to the STM32U3 ultra-low-power Arm Cortex-M33 microcontroller family: the STM32U3B5 and STM32U3C5 MCUs get more resources with up to 640 KB SRAM and 2 MB flash, as well as an HSP (hardware signal processor) accelerator to run AI/ML workloads without batteries, just using energy harvesting. The new chips are still clocked at up to 96 MHz, benefit from a near-threshold design (down to 0.65 V), allowing a power consumption of just 117 Coremark/mW in active mode, and can operate up to 105°C ambient temperature. They come with one additional group of interfaces, bringing the total to four SPI and I2C, two I3C and CAN-FD, and five UARTs, as well as five more 16-bit timers, for a total of 10. The STM32U3C5 also includes a cryptocore to accelerate encryption and decryption operations, and supports the CCB (Coupling and Chaining Bridge) hardware security feature, both of which […]


