Neuro PlayGround Lite
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Neuro PlayGround Lite – A multichannel wireless bio-signal capture board for HCI & BCI projects (Crowdfunding)

Neuro PlayGround Lite, or NPG Lite for short, is an ESP32-C6-powered multichannel wireless bio-signal capture board designed for HCI (Human-Computer Interface) and BCI (Brain Computer Interface) projects and applications. It can capture Electrocardiography (ECG), Electromyography (EMG), Electrooculography (EOG), or Electroencephalography (EEG) signals, and the ESP32-C6-MINI-1 module used in the design supports 2.4 GHz WiFi 6, Bluetooth LE, Zigbee, and Thread for mesh networking. It also follows the Adafruit Feather form factor, so it can be expanded with FeatherWings add-ons, including the company’s Playmate boards. Neuro PlayGround Lite specifications: Wireless Module – Espressif Systems ESP32-C6-MINI-1-N4 SoC – Espressif Systems ESP32-C6 CPU Single-core 32-bit RISC-V clocked up to 160 MHz Low-power RISC-V core @ up to 20 MHz Memory/Storage – 320KB ROM, 512KB SRAM Wireless – 2.4 GHz WiFi 6, Bluetooth 5.0, and 802.15.4 radio (for Thread/Zigbee) Storage – 4MB flash Antenna – PCB antenna USB – USB Type-C port for power/charging […]

Raspberry Pi HAT+ 60GHz mmWave Radar
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DreamHAT+ 60 GHz mmWave Radar HAT+ brings high-precision motion sensing to Raspberry Pi 4/5

Dream RF’s DreamHAT+ is a mmWave Radar HAT+ for the Raspberry Pi 4B and 5, designed around Infineon’s BGT60TR13C 60 GHz mmWave radar chip with four integrated antennas (1x Tx, 3x Rx) for directional sensing and motion tracking. Like other 24GHz or 60GHz mmWave solutions we’ve seen in the past, for instance Seeed Studio’s mmWave Human Detection Sensor Kit, Sparkfun’s Pulsed Coherent Radar Sensor, and RoomSense IQ ESP32-S3 room monitor, the DreamHAT+ is designed to sense tiny movement within a room or outside (since it works through walls) for human presence detection, fall detection, etc… in applications such as robotics and smart home automation. mmWave DreamHAT+ radar specifications: Radar chip – Infineon BGT60TR13C XENSIV 60 GHz radar sensor Operating Frequency – 58 – 63.5 GHz Transmission Bandwidth – 5 GHz Output Power – <10 mW EIRP: <15 dBm Detection Range – 0.1 – 15 m Range Resolution – 3 cm […]

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Tiny ESP32 WLED controller board
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$12 WLED controller board supports WS2812 RGB LED strips

“xcrhom WLED Type-C” is a tiny ESP32 board designed to run WLED open-source firmware that supports WS2812(B) RGB LED strips. It also supports audio-reactive effects using an “external microphone”, which appears to mean the microphone on the smartphone running the WLED app, more on that later. We had already written about other small ESP32/ESP32-S3-based WLED controllers with the likes of Adafruit Sparkle Motion Stick and ANAVI Miracle Emitter, and the xchhom board’s main selling point is its price, as it goes for about $12 before taxes (AliExpress even shows me a $6.14 “Welcome offer” including shipping). xchome WLED Type-C board specifications: Wireless module – ESP32-WROOM-32D SoC – Espressif ESP32-D0WD dual-core Tensilica LX6 processor @ 240 MHz Storage – 32Mbit SPI flash Connectivity – Wi-Fi 802.11 b/g/n up to 150 Mbps, Bluetooth 4.2/5.x LE IPEX antenna connector (antenna provided) RGB LED support 3-pin connector with GND, DA (Data), and 5V signals […]

M5Stack CoreS3-Lite
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M5Stack CoreS3 Lite low-cost IoT controller features magnetic backplate and 200mAh battery

M5Stack CoreS3 Lite is a cost-optimized ESP32-S3-based IoT Vision AI controller providing a cheaper version of the CoreS3 with a magnetic backplate and 200mAh battery instead of a DIN Rail backplate and 500mAh battery. The CoreS3-Lite still features a 2-inch capacitive IPS touchscreen, a VGA camera, a microSD card for storage, a few sensors like a 6-axis IMU, a 3-axis magnetometer, and a proximity sensor, as well as a dual microphone array and an RTC for time keeping. M5Stack CoreS3 Lite specifications: Wireless MCU – Espressif Systems ESP32-S3FN16R8 CPU – Dual-core 32-bit Xtensa LX7 microcontroller with AI vector instructions up to 240MHz, RISC-V ULP co-processor Memory – 512KB SRAM, 8MB PSRAM Storage – 16MB flash Wireless – 2.4GHz WiFi 4 (802.11b/g/n), Bluetooth 5.0 BLE + Mesh, 16MB flash Antenna – Internal 3D antenna Storage – MicroSD card slot Display – 2-inch display with 320×240 resolution via ILI9342C driver, capacitive touch […]

Core1121 LF HF Dual Band LoRa Module
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Core1121 sub-GHz, S-Band, and 2.4GHz LoRa module features through holes and castellated edges

The Waveshare Core1121 is a compact, multi-band LoRa module based on the Semtech LR1121 transceiver with support for Sub-GHz (150–960MHz), S-band (1.9–2.1GHz), and 2.4GHz ISM bands, and exposing GPIOs through both through and castellated holes. Key features include support for LoRa, (G)FSK, and LR-FHSS modulation schemes, AES-128 encryption, and compatibility with the SX126X/SX127X series for easy migration. We just noted Seeed Studio’s Wio-LR1121 last week with a very similar, yet more compact design with only castellated holes, and before that, the LR1121 was used in the MuRata Type-2GT module and a LILYGO module as an option for the T-Eth Elite board. Core1121 specifications: RF Transceiver – Semtech LR1121 Frequency bands Sub-GHz (150MHz ~ 960MHz), Different varieties for Europe, North America, Oceania, Asia S-band (1.9GHz ~ 2.1GHz) 2.4GHz ISM frequency bands Output Power Up to 22dBm @ 868/915 MHz (Sub-GHz) Up to 13dBm max @ 2.4GHz Receiver Sensitivity -127dBm @ Sub-GHz, SF7, CR4/5, […]

MeshCore LoRa off-grid messaging
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MeshCore is a lightweight alternative to Meshtastic LoRa-based off-grid messaging

While Meshtastic is by far the most popular off-grid messaging solution relying on LoRa radios, MeshCore offers an alternative as a lightweight C++ library and firmware designed for multi-hop packet routing and made for developers who want to create resilient, decentralized communication networks that work without the internet. The project’s GitHub repository provides some high-level differences compared to the Meshtastic and Reticulum projects: MeshCore provides the ability to create wireless mesh networks, similar to Meshtastic and Reticulum but with a focus on lightweight multi-hop packet routing for embedded projects. Unlike Meshtastic, which is tailored for casual LoRa communication, or Reticulum, which offers advanced networking, MeshCore balances simplicity with scalability, making it ideal for custom embedded solutions., where devices (nodes) can communicate over long distances by relaying messages through intermediate nodes. This is especially useful in off-grid, emergency, or tactical situations where traditional communication infrastructure is unavailable. MeshCore key features: Multi-hop […]

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FireBeetle 2 ESP32 P4 AI Development Kit
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DFRobot FireBeetle 2 ESP32-P4 is a compact board with MIPI DSI/DSI, microphone, WiFi 6, and GPIO headers

DFRobot FireBeetle 2 ESP32-P4 development board features an ESP32-C6 wireless module, two USB-C ports, GPIO headers, a microphone MIPI CSI and DSI connectors, and is offered with an optional carrier board enabling easy access to all I/Os as part of a development kit for the board. Like many other ESP32-P4 boards, such as the ALIENTEK DNESP32P4M, the Waveshare ESP32-P4-Module-DEV-KIT, or the ESP32-P4-Function-EV-Board, the DFRobot board uses an ESP32-C6 for Wi-Fi and Bluetooth connectivity. Other features include support for USB 2.0 OTG, a digital microphone header, microSD card slot, programmable buzzer, ADC/DAC, and an onboard CH343 USB-to-serial chip for programming via USB-C. It comes with expansion headers for easy access to I/Os from both the ESP32-P4 and C6, making it suitable for compact AIoT and lightweight machine learning applications. FireBeetle 2 ESP32-P4 dev board specifications: SoC – ESP32-P4NRW32 MCU Dual-core RISC-V microcontroller @ 360 MHz (down from 400 MHz?) with AI […]

Wio LR1121
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Wio-LR1121 tiny LoRa module supports for sub-GHz, S-Band, and 2.4GHz frequency bands

Seeed Studio Wio-LR1121 is a tiny, multi-band LoRa module based on LR1121 RF transceiver, a low-cost version of LR1120 without GNSS or Wi-Fi scanning capabilities, that supports sub-GHz, S-Band (1.9-2.1GHz), and 2.4GHz frequency bands. We had previously seen the LR1121 used in the MuRata Type-2GT module and a LILYGO module as an option for the T-Eth Elite board. The Wio-LR1121 offers another option that’s easy to solder, thanks to castellated holes and pads. Wio-LR1121 specifications: RF Transceiver – Semtech LR1121 Frequency bands – 863 to 928MHz and 2.4 to 2.5GHz frequencies; Note: The LR1121 also supports S-Band at 2.1 to 2.3 GHz, but it’s not mentioned in the specifications of the module, and  only briefly in the title and description Output Power Up to 20.4dBm @ 868/915 MHz Up to 11dBm max @ 2.4GHz Receiver Sensitivity RxBoost ON： -126dBm @ SubG,BW=125KHz, SF = 7 -140dBm @ SubG, BW=125KHz, SF = […]

Boardcon MINI1126B-P AI vision system-on-module wit Rockchip RV1126B-P SoC