bluetooth News - CNX Software - Embedded Systems News

June 19, 2025 by Debashis Das - No Comments

HackLED Pro LED controller – An Adafruit Sparkle Motion alternative with WS2812 and RGBCW LED support

HACK Lab HackLED Pro is an Adafruit Sparkle Motion-like LED controller that runs a custom version of WLED and supports both WS2812 and RGBCW LEDs, making it ideal for DIY lighting projects, smart home setups, and audio-reactive light displays. Built around an ESP32 MCU, this board includes 2-way WS2812 LED outputs, 5 PWM channels (RGBCW), and an onboard silicon microphone for music reactive LED setup. Like the Sparkle Motion, the outputs of this board are level-shifted, and there’s also a power switch that toggles the output power between 5V and 12V. The board features a USB-C port with a PD controller, with which you can power and program the board. The controller is housed in a thermally protected 3D printed case and is also compatible with the generic version of the WLED firmware. HackLED Pro specifications: Wireless module – ESP32-WROOM-32E-N4 WiFi and Bluetooth module with 4MB Flash LED Control 2x […]

June 18, 2025June 18, 2025 by Debashis Das - 6 Comments

$3.50 nanoCH57x CH570/CH572 RISC-V development board offers USB-C port, 2.4GHz radio/BLE, and GPIO pins

Designed by MuseLab, the nanoCH57x is a WCH CH570/CH572 development board with a 2.4 GHz proprietary radio (CH570) or Bluetooth LE (CH572) that only costs $3.50 and is more compact than the official CH570 Basic Evaluation Board. We first came across this low-cost MCU back in March this year, and saw that the official development board became available for purchase as early as April. The nanoCH57x development board currently features the 100 MHz CH572D RISC-V microcontroller (the CH570D version is coming later), which includes 256KB of flash memory, 12KB of SRAM, and an onboard 32 MHz crystal. The board also includes a USB 2.0 Type-C Host/Device port and PCB antenna for BLE/RF communication. MuseLab nanoCH57x development board specifications: MCU (one or the other) – WCH CH570D or CH572D CPU – QingKe 32-bit RISC-V3C core @ up to 100 MHz Memory – 12KB SRAM Storage – 256KB non-volatile memory 240KB code […]

June 17, 2025 by Jean-Luc Aufranc (CNXSoft) - 11 Comments

ESP32-S3 development board integrates SI4732 AM/FM radio receiver

LILYGO T-Embed SI4732 is an ESP32-S3 development board with an AM/FM radio, a TFT display, a rotary encoder, a built-in microphone, and a microSD card slot powered through a USB-C port or LiPo battery. As its name implies, it’s based on the earlier LILYGO T-Embed battery-powered WiFi and BLE controller with a display and rotary encoder, but also adds a Skyworks SI4732 AM//FM/SW/LW radio receiver to the mix. LILYGO T-Embed SI4732 specifications: Wireless module – ESP32-S3-WROOM-1 module SoC – ESP32-S3 CPU – Dual-core Xtensa LX7 processor @ 240 MHz with vector extension for AI/ML Memory – 512 KB SRAM, 8 MB PSRAM Storage – 16MB flash Wireless – 2.4 GHz WiFi 4 and Bluetooth 5.0 LE PCB antenna Storage – MicroSD card slot Display – 1.9-inch IPS color TFT LCD with 320 x 170 resolution (ST7789V SPI driver) Audio – 2x microphones, 8 Ohm @ 1W speaker Radio – Skyworth […]

June 16, 2025June 18, 2025 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

ESP32-C61-DevKitC-1 development board features ESP32-C61 low-cost WiFi 6 and Bluetooth LE 5.0 SoC

The ESP32-C61-DevKitC-1 is a development board based on the ESP32-C61 low-cost WiFi 6 and Bluetooth LE 5.0 SoC that was first unveiled in January 2024, and has just entered mass production this month (June 2025). The board is offered with two USB-C ports, two buttons, an RGB LED, and GPIO headers. In my 2024 year in review report, I noted that Espressif would likely launch the ESP32-C5 dual-band WiFi 6 SoC in 2025, but I completely forgot about the ESP32-C61, which is basically a cost-down version of the ESP32-C6. The ESP32-C61-DevKitC-1 development board and ESP32-C61-WROOM-1 module are now available, so let’s have a closer look. ESP32-C61-DevKitC-1 specifications: Wireless module – ESP32-C61-WROOM-1 SoC – ESP32-C61HR2 CPU – Single 32-bit RISC-V core clocked up to 120MHz Memory – 320KB SRAM, 2MB PSRAM Storage – 256KB ROM Wireless – WiFi 6 and Bluetooth LE 5.0 Storage – 8MB QSPI flash Antenna – PCB […]

June 14, 2025 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Valtrack V4 is a programmable 4G LTE GPS vehicle tracker with ESP32-C3 Bluetooth & Wi-Fi SoC (Crowdfunding)

Valetron Systems VALTRACK-V4-VTS-ESP32-C3 (or Valtrack V4 for short) is a 4G LTE GPS vehicle tracker based on ESP32-C3 WiFi and Bluetooth SoC and a SIMCom SIM7672 cellular and GNSS module. Designed to track bicycles, cars, or trucks, the Valtrack V4 GPS tracker is housed in an IP67 waterproof enclosure, takes 12V to 42V DC input from a lead battery or 3.7-4.2V from a backup LiPo or Li-Ion battery, and features an accelerometer to wake up when motion is detected or detect theft, as well as three RGB LEDs for status. Valtrack V4 specifications: Wireless MCU – Espressif ESP32-C3FH4 CPU – 32-bit RISC-V microcontroller @ up to 160 MHz; Memory – 400 KB SRAM Storage – 4 MB flash Wireless – 2.4 GHz Wi-Fi 4 & Bluetooth 5.0 Cellular and GNSS connectivity SIM7672G 4G LTE Cat 1 module with Global LTE band, 2G fallback, and GNSS support Nano SIM card […]

June 9, 2025June 16, 2025 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

$6.5 RAK11160 LoRaWAN, WiFi, and BLE module pairs ESP32-C2 with STM32WLE5 for low-power, long-range IoT

RAK11160 ESP32-C2 STM32WL LoRaWAN module

RAKwireless RAK11160 is a new low-cost, low-power LoRaWAN, WiFi 4, and Bluetooth LE module based on ESP32-C2 (ESP8684) wireless microcontroller and STM32WLE5 LoRa SoC for LPWAN IoT applications. The company noticed that many people would combine their STMicro STM32WL-based RAK3172 WisDuo LoRaWAN module with an ESP32 module to add WiFi and/or Bluetooth connectivity to their projects besides LoRaWAN. So RAKwireless decided to offer a module combining both STM32WL and ESP32-C2 to offer a cheap and much more compact solution to their customers. RAK1160 was born. RAwireless RAK11160 specifications: LPWAN SoC/SiP – STMicro STM32WLE5 Core – Arm Cortex-M4 MCU @ 48 MHz Memory – 64 KB RAM Storage – 256 KB flash memory with ECC Wireless – Sub-GHz radio based on Semtech SX126x LoRaWAN 1.0.4 specification compliant Supported bands – EU433, CN470, IN865, EU868, AU915, US915, KR920, RU864, and AS923 LoRaWAN Activation by OTAA/ABP LoRa Point-to-Point (P2P) communication Tx Power Output – […]

June 5, 2025June 5, 2025 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

STMicro STM32WBA5MMG is a tiny wireless module with Bluetooth LE 6.0, Zigbee 3.0, and OpenThread

STMicro’s STM32WBA5MMG is a tiny (12.5 x 8 mm), ultra-low-power 2.4 GHz wireless module based on the STM32WBA55UG wireless microcontroller with support for Bluetooth 6.0 LE, Zigbee 3.0, and OpenThread. The company further adds that designing a board for the module does not require any RF expertise, it provides a fully integrated Bill of Materials (BOM) with 32 MHz and 32 kHz crystals and integrated antenna matching or optional external antenna configurations, and its compatibility with 2-layer PCBs helps reduce costs. STM32WBA5MMG specifications: Wireless MCU – STMicro STM32WBA55UG Core – 32-bit Arm Cortex-M33 CPU with TrustZone®, MPU, DSP, and FPU Memory – 128 KB SRAM, including 64 KB with parity check Storage 1 MB flash memory with ECC, including 256 KB with 100 kcycles 512-byte (32 rows) OTP ART Accelerator – 8 KB instruction cache allowing 0-wait-state execution from flash memory (frequency up to 100 MHz, 150 DMIPS) Wireless Bluetooth […]

June 3, 2025June 3, 2025 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

MOKO LW005-MP – A LoRaWAN Smart Plug and power meter

Moko LW005-MP LoRaWAN Smart Plug Power Meter

The MOKO LW005-MP is a LoRaWAN smart plug for indoor power and energy consumption monitoring, featuring sockets compliant with EU, US, UK, and FRA standards and suitable for industrial equipment control, power monitoring, and energy management. The UL-certified smart plug operates with 100-230V AC mains, offers 0.5% power measurement accuracy, supports Bluetooth 4.0 for initial configuration and OTA updates, and can be controlled with LoRaWAN commands, an open-source mobile app, or a physical button. MOKO LW005-MP specifications: Wireless Bluetooth LE V4.0 for local configuration and OTA updates. LoRa Protocol – LoRaWAN V1.0.3 Supported frequency bands – CN470, EU868, AU915, US915, AS923, IN865, KR920, EU433, CN779, and RU864 Max Transmit Power – +21dBm Rx Sensitivity – -137dBm @ SF12 300bps Range – Up to 7 km in urban open space Power measurement accuracy – ±0.5% Misc Power and pairing button 2x RGB LED indicators display network status and power consumption levels. […]