There are plenty of small ESP32-C3 IoT boards with a USB-C connector on the market, and while they all look very similar, antenna designs differ, and less thought-out ones may severely impact the WiFi and Bluetooth range. Peter Neufeld decided to hack one of those cheap ESP32-C3 boards by adding a custom antenna, and this resulted in the board having more than twice the range and almost three times in some cases. Those tiny boards are cramped, so there’s very little space around the ceramic antenna typically used, leading to poor RF performance. To work around that issue, Peter added a 31mm long antenna made of silver-plated wire, making a loop of about 8mm in diameter outside of the board and soldered on the ceramic antenna’s solder joints, and the rest of the wire (about 15mm) points upwards. As you can see from the photo above, he didn’t remove the […]
Microchip SAMA7D65 Cortex-A7 MPU comes in SoC and SiP packages with up to 2Gbit integrated DDR3L memory
Microchip has recently released the SAMA7D65 MPU, a high-performance Arm Cortex-A7 embedded processor designed for HMI and connectivity applications across industrial, home, medical, and appliance markets. The MPU is available in both System-in-Package (SiP) and System-on-Chip (SoC) variants and features various display interfaces, including MIPI DSI, LVDS, and 8-bit Serial RGB interfaces, along with a 2D GPU for graphical acceleration. Memory and storage options include support for 16-bit DDR2/DDR3/DDR3L and LPDDR2/3 memory, optional 1 Gbit or 2 Gbit DDR3 RAM, NAND Flash, eMMC Flash, and SD card. It features dual Gigabit Ethernet with TSN support, an I3C controller, five CAN-FD interfaces, and three high-speed USB ports. Additionally, it comes with various security features, including physically unclonable function (PUF), secure boot, key storage, and cryptographic accelerators for AES, SHA, RSA, and ECC. Microchip SAMA7D65 SoC/SiP specifications: CPU – Arm Cortex-A7 core up to 1 GHz Arm TrustZone, NEON, FPU 32KB L1 I-cache […]
ESP32-P4 credit card-sized board features Ethernet, WiFi 6, four USB ports, 40-pin GPIO header, MIPI DSI and CSI connectors
Waveshare ESP32-P4-Module-DEV-KIT credit card-sized board may look like a Linux-powered Raspberry Pi SBC, but instead, it’s based on an “ESP32-P4-Module” comprised of a 400 MHz Espressif ESP32-P4 RISC-V general-purpose microcontroller, an ESP32-C6 “co-processor” for WiFi 6 and Bluetooth 5, and a 16MB SPI NOR flash. Designed for HMI applications, the board offers MIPI DSI and CSI connectors, as well as a 100Mbps Ethernet RJ45 jack, four USB 2.0 ports, a 40-pin GPIO header, and more. It basically integrates the same ports as a Raspberry Pi SBC minus HDMI, but relies on a microcontroller instead of a Linux-capable application processor. Waveshare ESP32-P4-Module-DEV-KIT specifications: ESP32-P4-Module Microcontroller – ESP32-P4NRW32 MCU Dual-core RISC-V microcontroller @ 400 MHz with AI instructions extension and single-precision FPU Single-RISC-V LP (Low-power) MCU core @ up to 40 MHz GPU – 2D Pixel Processing Accelerator (PPA) VPU – H.264 and JPEG codecs support Memory – 768 KB HP L2MEM, […]
P42 Pico2 M.2 – A Raspberry Pi RP2350 board in M.2 form factor
The P42 Pico2 M.2 may look like an M.2 module, but it’s actually a Raspberry Pi RP2350 development board in M.2 2230 form factor whose edge connector exposes USB, UART, I2C, and control I/Os. The board ships with a 2MB SPI flash and complies with voltage levels defined by the M.2 specification, with some of the interfaces running on 1.8 V. The SWD interface, +3.3 V, GND, and 16 IOs are accessible on castellated pins, and there’s also a QWIIC connector for I2C modules, but it’s not populated by default. The board also comes with a microSD card slot on the bottom and the usual Reset and BOOT buttons. P42 Pico M.2 specifications: SoC – Raspberry Pi RP2350A CPU Dual-core Arm Cortex-M33 @ 150 MHz with Arm Trustzone, Secure boot OR Dual-core RISC-V Hazard3 @ 150 MHz Up to two cores can be used in any combination Memory – 520 […]
NV8600-Nano AI Developer Kit features NVIDIA Jetson Orin Nano 8GB, quad GbE, Raspberry Pi Camera Module 2
AAEON NV8600-Nano AI Developer Kit is based on a 67 TOPS NVIDIA Jetson Orin Nano 8GB and ships with a carrier board with quad GbE, a Raspberry Pi Camera Module 2, a fan kit (heatsink with fan), and a 60W power adapter. The carrier board is also equipped with a 256GB M.2 2280 M-key NVMe SSD, a SATA connector, HDMI 1.4 video output, two MIPI CSI connectors compatible with Raspberry Pi Camera Modules, six USB 3.2 Gen 2 Type A ports, a few serial interfaces, a 40-pin GPIO header compliant with the Jetson Orin Nano (Super) developer kit, and two more M.2 sockets for wireless/cellular expansion. NV8600-Nano AI Developer Kit specifications: NVIDIA Jetson Orin Nano 8GB Module CPU – 6-core Arm Cortex-A78AE v8.2 64-bit CPU @ 1.7 GHz with 1.5MB L2 + 4MB L3 GPU – 1,020 MHz NVIDIA Ampere architecture with 1024 CUDA cores and 32 tensor cores Video […]
10-cent WCH CH570/CH572 RISC-V MCU features 2.4GHz wireless, Bluetooth LE 5.0, USB 2.0
Patrick Yang, CTO at WCH, has recently unveiled the CH570 RISC-V SoC with 2.4GHz wireless and USB 2.0 (host & device) as an upgrade to the popular CH32V003 general-purpose RISC-V MCU with more features at the same low price (10 cents). CH570 also comes with 12KB SRAM and 256KB flash (vs 2KB SRAM and 16KB flash for the CH32V003), offers up to twelve GPIO, six PWM, I2C, UART, SPI, and a 20-channel key detection module. There’s also the CH572 with the same features, except it also supports Bluetooth LE 5.0. As a side note, I wrote about the CH572 RISC-V MCU with BLE in 2019, but I guess it was scrapped likely because it had OTP instead of flash…, and the new CH572 (2025) is different. WCH CH570/CH572 specifications:  CPU core QingKe 32-bit RISC-V3C core @ up to 100 MHz (RV32IMBC instruction set and custom instructions) Low-power 3-stage pipeline High-speed […]
TinyBeast FPGA – A Microchip PolarFire MPF300T/MPF100T FPGA PCIe reference design (Crowdfunding)
TinyBeast FPGA is a compact module based on Microchip PolarFire MPF100T or MPF300T FPGA with up to 300K logic elements and a hard PCIe interface that is suitable for automation, measurement, and robotics applications. Two versions of the module are available: the TinyBeast FPGA P mini PCIe module designed for integration with embedded systems, and the TinyBeast FPGA S with B2B connectors designed to be connected to a carrier board. TinyBeast FPGA P TinyBeast FPGA P specifications: FPGA – Microchip PolarFire FPGA TinyBest FPGA P-300 –Â MPF300T-1FCVG484E FPGA with 300K LE, 10.6 Mbit embedded RAM, 924 DSP blocks TinyBest FPGA P-100 – 100K LE, 5.2 Mbit embedded RAM, 288 DSP blocks System Memory – 4 GB DDR4 memory Storage – SPI flash Host interface – PCIe x1 Gen2 as EP via mini PCIe edge connector Expansion – Samtec SS4-30-3.00-L-D-K I/O connector for GPIOs and up to 12.7 Gbps transceivers Debugging […]
SATURN NITRO – A Microchip PIC32MK development board with Arduino Nano form factor
While Microchip regularly releases PIC32 microcontrollers and evaluation kits, we don’t see that many PIC32 development boards from third parties. The SATURN NITRO is an exception, and the Arduino Nano-inspired development board is equipped with a 120 MHz PIC32MK general-purpose and motor control 32-bit MIPS microcontroller with 256KB SRAM, 1024KB flash, and 4KB EEPROM. The board closely follows the design of the official Arduino Nano board and can be seen as a beefed-up version with a much more powerful microcontroller delivering 198 DMIPS compared to the Microchip ATmega328P 8-bit microcontroller @ 16 MHz with just 2KB SRAM, 32 KB flash, and 1KB EEPROM, and a less capable I/Os. SATURN NITRO specifications: MCU – Microchip PIC32MK1024MCM064 Core – MIPS32 microAptiv MCU core @ 120 MHz with FPU; up to 198 DMIPS Memory – 256 KB SRAM Storage – 1MB flash, 4KB EEPROM USB – 1x Micro USB OTG port also used […]