$2 MXCHIP EMC3080 WiFi and Bluetooth LE IoT module integrates Cortex-M33 MCU

MXCHIP EMC3080 Cortex-M33 WiFi & Bluetooth-IoT module

While nowadays most people from the maker community are working with ESP8266 or ESP32 modules or boards for IoT projects requiring Bluetooth LE and/or WiFi connectivity, we’ve also covered some low-cost alternatives such as Bouffalo Labs BL602 or Realtek RTL8710. MXCHIP EMC3080 module offers yet an alternative with 2.4 GHz 802.11 b/g/n WiFi and Bluetooth LE 4.2/5.0. Where it differentiates against other solutions is that it features a more secure Cortex-M33 core clocked at 100 MHz, as found in UNISOC V5663 and Ameba RTL8722DM wireless SoCs, but still getting a fairly low price tag of $2.35 on Seeed Studio, which drops to $2.10 per pieces for orders of 10 or more units. MXCHIP EMC3080 module specifications: MCU – MX1300CF Cortex-M33 processor at up to 100 MHz with 256KB SRAM, 2MB XIP flash, 384 or 512 bytes OTP memory Connectivity WiFi 802.11 b/g/n 1T1R WiFi @ 2.4GHz Single Frequency HT20 support […]

ThingPulse ESPGateway features not one, but two ESP32 wireless modules

ESPGateway

ThingPulse ESPGateway is a WiFi and Bluetooth gateway equipped with two ESP32 modules, two external antennas, and a footprint for an RN2483 LoRaWAN chip. The two ESP32-WROVER modules communicate over UART, and this design allows one ESP32 to transmit data over WiFi or Bluetooth, while the other remains in promiscuous mode, or transmits data using ESPNow low-power proprietary protocol for applications we’ll discuss below. ESPGateway hardware specifications: Wireless connectivity 2x ESP32-WROVER-IB modules with dual-core ESP32 processor, 4MB flash, and 8MB PSRAM Footprint for RN2483 LoRaWAN module connected to one of the ESP32 module 2x external antennas for longer range Expansion – Unpopulated headers to access to 18 GPIO pins, 3.3V, and GND to add sensors, displays, actuators… Debugging – USB-C port for serial console connected to one CP2104 USB to TTL chip plus switch to select ESP1/ESP2 module Misc – 4x WS2812B programmable LEDs, Reset button ThingPulse explains in more […]

M5Stack Atom DTU LoRaWAN Kit also supports WiFi, RS485, Modbus communication

ESP32 WiFI, Bluetooth, LoRaWAN, and RS485 kit

M5Stack is known for its ESP32 based building blocks for the IoT with WiFi & Bluetooth wireless connectivity, I/O headers, and block-specific features like a tiny color display, a speaker, a touchscreen display, a camera, and more. The company’s latest product is the M5Stack Atom DTU LoRaWAN Kit based on ESP32 ATOM Lite, as well as ASR Micro ASR6501 LoRa module (SX1302 based) and one RS485 header that allows for industrial communication notably with the Modbus protocol. M5Stack Atom DTU LoRaWAN Kit specifications: Wireless connectivity  M5Stack ATOM Lite with ESP32 WiFi 4 and Bluetooth 4.2/5.x dual-core SoC ASR ASR6501 LoRa chip Operating frequency – 868MHz or 915 MHz Transmit power – Up to +21dBm RX sensitivity – Up to -137dBm (SF=12/BW=125KHz) Serial communication – UART 115200bps (AT command) via ESP32 Antenna – SMA antenna connector Power consumption @ 3.3V (from ASR6501 datasheet) Tx @ +21dBm – 106 mA Rx – […]

Avnet AVT9152 – nRF52840 & nRF91 IoT module and devkit

Avnet AVT9152 development kit

Avnet AVT9152 is an IoT module and development kit that combines two Nordic Semi wireless solutions, namely nRF52840 Bluetooth 5.2/LE multiprotocol SoC and nRF91 IoT cellular system-on-module with NB-IoT, LTE-M, and GPS connectivity. The module supports Avnet’s enterprise-ready IoTConnect Platform, and the development kit combines with IoT module with a 3-axis accelerometer, a 3-axis gyroscope, as well as pressure, temperature, relative humidity, ambient light, and motion (PIR) sensors to help with the development of IoT applications such as tracking devices, vending machines, points-of-sale, smart buildings, industrial IoT, and more. Avnet AVT9152 module – nRF52840 + nRF91 Key features and specifications: Wireless SoC/SiP Nordic Semi nRF9160 Cortex-M33 based system-in-package (SiP) with LTE-M/NB-IoT global carrier certification for LPWAN connectivity; support for power save mode, PSM and eDRX Nordic Semi nRF52840 Cortex-M4F microcontroller with Bluetooth 5.0 and Bluetooth LE for short-range communication Flexible LTE and GPS antenna options 50x castellated holes with UART, […]

LILYGO Mini E-Paper Core combines ESP32 with 1.02-inch ePaper Display in 3D printed enclosure

lilygo mini e-paper core

LILYGO Mini E-Paper Core is another ESP32-based e-Paper display by LILYGO, but it’s a really tiny 1.02-inch e-Paper display housed in a 3D printed enclosure that reminds me of M5Stack Core with a 2-inch TFT LCD. The tiny low-power display also offers a MicroSD card socket, a reset button, a three-way user button, as well as headers for GPIOs, ADC, DAC, SPI, and more.   LILYGO Mini E-Paper Core specifications: Wireless SiP – ESP32-PICO-D4 system-in-package with ESP32 dual-core processor, 4MB Flash, 2.4 GHz WIFi 4 & Bluetooth connectivity Storage – MicroSD card socket Display – 1.02-inch e-paper display with 128×80 resolution USB – 1x USB Type-C for power and programming Expansion 7-pin 2.54mm pitch header with 5x GPIO, 2x ADC, 2x DAC, 3.3V, and GND 8- pin 2.54mm pitch header with 4x GPIO, SPI, 1x ADC, 5V, VBUS, VBat, and GND Misc – Three-way toggle button connected to G36, G0, […]

$3.5 RV-Debugger Plus UART & JTAG debug board comes with BL702 Zigbee & BLE RISC-V SoC

Sipeed RV-Debugger Plus

USB to UART debug boards are a necessity for anyone playing with single board computers, at least when using bleeding-edge bootloader or Linux kernel where the target board may not always boot, or when troubleshooting booting problems. Those are often based on FDTI or WCH chips, but Sipeed RV-Debugger Plus features Bouffalo Lab BL702 Zigbee & Bluetooth LE RISC-V SoC instead and offers both UART and JTAG interfaces. So let’s have a look at both the board and SoC. Sipeed RV-Debugger Plus USB to TLL debug boards are meant to be simple and that’s the case for Sipeed latest BL702 board as it comes with a 12-pin connector with Tx/Rx for UART, 8 signals for JTAG, plus 5V, 3.3V, and GND power signals. We can also see pads for Tx/Rx/CTS, a boot button, a crystal oscillator, and a USB-C port to connect to the host computer. What I don’t see […]

NXP’s Ultra-Wideband (UWB) evaluation kits work with Apple U1 chip

UWB evaluation kits

The Fira Consortium was established in 2019 to provide an Ultra Wide-Band (UWB) ecosystem for real-time centimeter accuracy indoor positioning with companies such as NXP Semiconductors and Samsung Electronics on board. More companies have joined since then including Apple which designed its own UWB chip – the Apple U1 – found in recent iPhone 11 & 12 smartphones, as well as Apple Watch Series 6 to enable “Nearby Interaction“. If you’d like to develop UWB-enabled IoT applications, NXP has announced two beta UWB evaluation kits – developed with partners – compatible with Apple U1:  Murata Type2BP EVK and MobileKnowledge’s UWB Kit Mobile Edition. Murata Type2BP EVK Specifications: Wireless chips/modules Murata’s Type2BP ultra-small UWB module based on NXP Trimension SR150 Arm Cortex-M chip for IoT devices. 802.15.4z compatible and supports 3D AoA (Angle-of-Arrival) for extra precision. NXP QN9090 Arm Cortex-M4 Bluetooth 5.0 LE SoC with 640 KB flash, 152 KB RAM, […]

ESP32-WROOM-DA dual PCB antenna WiFi module aims for longer range, better reliability

ESP32-WROOM-DA

Espressif Systems ESP32-WROOM-DA is another ESP32 based WiFI & BLE module with a twist as its dual PCB antenna design aims to provides a longer range and more reliable connectivity by automatically switching to a specific PCB antenna depending on signal strength. The new module features ESP32-D0WD-V3 dual-core Xtensa LX6 dual-core processor with a maximum frequency of 240 MHz, along with 520 KB of SRAM and 448 KB of ROM, and has been designed to be pin-to-pin compatible with ESP32-WROOM-32E module found in products such as Pico Wireless, in order to ease migration between the two modules. Espressif did not provide detailed specifications for the new WiFi module, but assuming it’s mostly based on ESP32-WROOM-32E design, ESP32-WROOM-DA should have the following key features & specifications: WiSoC – Espressif Systems ESP32-D0WD-V3 embedded, Xtensa dual-core 32-bit LX6 microprocessor, up to 240 MHz with 448 KB ROM for booting and core functions, 520 […]