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July 15, 2020 by Jean-Luc Aufranc (CNXSoft) - No Comments

STM32 IoT Discovery Kit Runs AWS-Ready FreeRTOS, Supports Arduino and Pmod Expansion Boards

STMicroelectronics STM32 IoT Discovery Kit is supposed to ease software development for IoT nodes thanks to a qualified port of FreeRTOS integrated into the STM32Cube ecosystem, and ready to connect to Amazon Web Services (AWS). The hardware is comprised of an STM32L4+ Cortex-M4F microcontroller, various MEMS sensors, a secure element, and offers WiFi, Bluetooth 4.2, and NFC connectivity. STM32 IoT Discovery Kit (B-L4S5I-IOT01A) key features and specifications: MCU – STMicro STM32L4+ (STM32L4S5VIT6) Arm Cortex-M4F microcontroller with 2 MB Flash, 640 KB RAM in LQFP100 package storage – 64 Mbit Quad-SPI Flash Connectivity Bluetooth 4.1 module (STMicro SPBTLE-RF) 802.11 b/g/n compliant Wi-Fi module (Inventek ISM43362-M3G-L44) Dynamic NFC tag based on ST25DV04K with its printed NFC antenna USB – Micro USB OTG port STMicro Sensors 2 digital omnidirectional microphones (MP34DT01) Relative humidity and temperature sensor (HTS221) 3-axis magnetometer (LIS3MDL) 3D accelerometer and 3D gyroscope (LSM6DSL) 260-1260 hPa absolute digital output barometer (LPS22HB) […]

July 8, 2020July 8, 2020 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Maia ESP32-S2 Development Board Features Micro USB OTG Port, Prototyping Area

One of the advantages of the new ESP32-S2 processor is that it offers a USB OTG interface. So far few boards took advantage of the extra interface, and one of the rare ones is Cucumber ESP32-S2 board with a USB-C OTG port. There’s another option with a slightly unusual form factor thanks to Stetel Things’ Maia ESP32-S2 development board with the typical USB-C port for power and debugging, plus a micro USB OTG port, and a small prototyping area. Maia ESP32-S2 development board specifications: SoC – Espressif System ESP32-S2 single-core LX7 processor at up to 240 MHz with an ultra-low-power (ULP) RISC-V CPU, 320KB RAM Storage – 4MB flash Connectivity – 802.11b/g/n WiFi 4 with on-board PCB antenna USB 1x Micro USB OTG port for data and power 1x USB-C port for programming (virtual UART) and power Expansion 24-pin I/O header “Playground” prototyping area with 4x 18 through holes including […]

June 29, 2020June 29, 2020 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Aegis Secure WiFi Smart Deadbolt Works with Android/iOS Phones (Crowdfunding)

We previously wrote about smart lock systems that allow you to open your door with the help of your smartphone. Products covered including Xiaomi Sherlock M1 that only works with specific doors/locks, and K1 smart lock box that stores your keys in a rugged box meaning it works with all door mechanisms, but it does not seem particularly secure to me. BOSMA Aegis Bluetooth & WiFi smart deadbolt looks to potentially a more secure solution as it should work with any door, and complements your main lock which you may want to use when you are not at home for longer periods of time. Aegis smart deadbolt specifications: Connectivity – Built-in Bluetooth; WiFi via a WiFi connector shipped with Aegis Voice Assitant Integration – Google Home and Amazon Alexa Optional BOSMA Sentry smart doorbell with Storage – Up to 128GB via MicroSD card slot; cloud storage Video – 1080p video […]

June 10, 2020June 10, 2020 by Jean-Luc Aufranc (CNXSoft) - 11 Comments

TTGO T-Internet-POE Board Provides Ethernet, PoE, WiFi, Bluetooth for $16

We’ve written about several ESP32 POE boards in the past including wESP32, but there’s now another one with LilyGO TTGO T-Internet-POE board offering Fast Ethernet, PoE, as well as WiFI and Bluetooth connectivity through ESP32-WROVER-B module. TTGO T-Internet-POE specifications: Wireless Module – ESP32-WROVER-B with ESP32 dual-core WiSoC, 4MB flash, 8MB PSRAM Storage – MicroSD card socket Connectivity 2.4 GHz 802.11b/g/n WiFi 4 and Bluetooth 5.1 via ESP32 10/100M Ethernet via LAN8720A Ethernet PHY Expansion – Unpopulated I/O header with UART, SPI, I2C, PWM, I2S, ADC; 3.3V I/O voltage Debugging / Programming Serial port via USB-C port and CP2104 USB to TTL chip (TBC) 6-pin programming interface with Tx/Rx, IO0, Reset, 3.3V and GND Misc – BOOT and reset buttons, 32.768MHz crystal oscillator Power Supply 5V via USB-C port up 50V PoE via Pulse PA2369NL transformer and HanRun HR861153C PoE compliant RJ45 jack SI3404 power management chip Dimensions – 70 x […]

June 5, 2020November 3, 2020 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

M5Stack Atom Echo Coin-Sized Bluetooth Speaker is Powered by ESP32-PICO-D4 SiP

M5Stack has just launched Atom Echo, a coin-sized programmable Bluetooth speaker based on Espressif Systems ESP32-PICO-D4 system-on-package. The company sent me an early sample to play with before launch… but let’s have a look at the specification before checking the device further. Specifications: SiP – Espressif Systems ESP32-PICO-D4 system-in-package with ESP32 dual-core processor @ 240MHz Wi-Fi, BLE 4.0 and 4MB flash Audio 0.5W/NS4168 I2S speaker SPM1423 PDM microphone Expansion 5-pin + 4-pin headers with 6x GPIOs, UART, 5V, 3.3V, GND 4-pin digital Grove header with 2 I/Os, 5V and GND Misc – RGB LED (SK6812), Function (Top – G39 pin) and reset buttons (side), IR LED Power Supply – 5V/500mA via USB-C port Dimensions – 24 x 24 x 17mm (plastic material) Weight – 10 grams The Bluetooth speaker is really small, but you may think CNXSoft has big hands and fat fingers so it makes the speaker smaller than […]

May 31, 2020March 23, 2021 by Jean-Luc Aufranc (CNXSoft) - 11 Comments

Cucumber ESP32-S2 Development Board Comes with USB OTG Port, Optional Sensors

Cucumber ESP32-S2 USB OTG Development Board

Yesterday, I wrote about LilyGO TTGO ESP32-S2 WiFi IoT board, but one commenter mentioned it missed one of the key features of ESP32-S2 chip: a USB OTG port. While USB OTG is accessible through the header pins, it’s not the most convenient to use. I also quickly mentioned Cucumber ESP32-S2 development board in that post, but I did not expand too much since I thought it should only ship within Thailand. But the board does include two USB Type-C ports, one for the usual USB UART connector, and the other for USB OTG, and I found out the board is available worldwide. The board is available in multiple variants with or without sensors and PSRAM, and with external IPEX antenna or PCB antenna using ESP32-S2-WROVER(-I) or ESP32-S2-WROOM(-I) module. Cucumber specifications: Wireless Module (one of the other): ESP32-S2-WROVER with ESP32-S2, 4MB flash, 2MB PSRAM, on-board PCB antenna ESP32-S2-WROVER-I with ESP32-S2, 4MB […]

May 30, 2020May 30, 2020 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

TTGO ESP32-S2 WiFi IoT Board Comes with Optional MicroSD Card and Battery Support

All ESP32-S2 boards I’ve seen so far were from Espressif Systems themselves including ESP32-S2-Saola-1 and ESP32-S2-Kaluga-1, but LilyGO TTGO ESP32-S2 is the first third-party board for sale so far. The tiny board is somewhat similar to ESP32-S2-Saola-1 board and comes in two versions with a similar form factor, but a completely different pinout and the presence of a MicroSD card socket and a battery connector on one of the boards. The simpler board is called “ESP32-S2 ESP32-S-WOOR” and comes with ESP32-S2-WROOM module, while the one with more features is named “TTGO ESP32-S2 ESP32-S ” and features its own circuitry built around ESP32-S2 WiSoC. Both TTGO ESP32-S2 boards share many of the same specifications: SoC – Espressif Systems ESP32-S2 single-core 32-bit Tensilica LX7 processor with 320 kB SRAM, 128 kB ROM, System Memory – 8MB PSRAM Storage – 4MB flash; XY-ESP32-S only: MicroSD card socket Connectivity 2.4GHz 802.11b/g/n WiFi 4 connectivity […]

May 27, 2020May 27, 2020 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Dialog DA16200 WiFi SoC Promises a Year of Battery Life for Always-Connected IoT Devices

Dialog DA16200 WiFi One Year Battery Life

WiFi is omnipresent, and many IoT devices are relying on the wireless standard for connectivity, but as most of you will already know, WiFi suffers from high-power consumption and may not always be suitable for battery-operated devices. There are always battery optimization tricks to use WiFi on battery-powered devices, for example, a solar camera using PIR to only record and transmit video when needed, or a board optimized to consume as little as possible in deep sleep waking up only when necessary. Those tricks are not applicable to all use cases, so Dialog Semiconductor has launched DA16200 Wi-Fi SoC delivering year plus battery life for always-connected Wi-Fi IoT devices. DA16200 key features and specifications: MCU Core – Arm Cortex M4F @ up to 160 MHz Memory – 512 KB SRAM Storage – 256 kB ROM, 8KB OTP ROM, external flash controller, eMMC, SD host Connectivity 2.4 GHz, 20 MHz channel […]