esp32 News - Page 41 of 80 - CNX Software

June 27, 2022 by Jean-Luc Aufranc (CNXSoft) - 13 Comments

ESP32 board with 150Mbps 4G LTE modem also supports RS485, CAN Bus, and relay expansion

LILYGO has designed another ESP32 board with a 4G LTE modem with the LILYGO T-A7608E-H & T-A7608SA-H variants equipped with respectively SIMCom A7608SA-H for South America, New Zealand, and Australia, and SIMCom A7608E-H for the EMEA, South Korean, and Thai markets, both delivering up to 150 Mbps download and 50 Mbps upload speeds. The board also supports GPS, includes a 18650 battery holder, and features I/O expansion headers that support an add-on board with RS485 and CAN bus interfaces, in a way similar to the company’s earlier TTGO T-CAN485 board with ESP32, but no cellular connectivity. LILYGO T-A7068E-H/T-A7608SA-H board specifications: Wireless Connectivity WiFi & Bluetooth – ESP32-WROVER-E module based on ESP32 dual-core processor @ 240 MHz with 4MB flash, 8MB PSRAM, 2.4 GHz WiFi 4 and Bluetooth 4.2/5.x connectivity, PCB antenna Cellular connectivity Data transfer speeds 4G LTE – Up to 150 Mbps downlink, up to 50Mbps uplink 3G HSPA+ […]

June 27, 2022 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

ICE-V Wireless FPGA board combines Lattice Semi iCE40 UltraPlus with WiFi & BLE module

Lattice Semi ICE40 boards are pretty popular notably thanks to the availability of open-source tools. ICE-V Wireless is another ICE40 UltraPlus FPGA board that also adds wireless support through an ESP32-C3-MINI-1 module with WiFi 4 and Bluetooth LE connectivity. Designed by QWERTY Embedded Design, the board also comes with 8MB PSRAM, offers three PMOD expansion connectors, plus a header for GPIOs, and supports power from USB or a LiPo battery (charging circuit included). ICE-V Wireless specifications: FPGA – Lattice Semi ICE40UP5K-SG48 FPGA with 5280 LUTs, 120 Kbits EBR RAM, 1024 Kbits PSRAM External RAM – 8MB PSRAM Wireless – ESP32-C3-MINI-1 module with 2.4 GHz WiFi 4 and Bluetooth LE through ESP32-C3 RISC-V processor, 4MB flash. USB – 1x USB Type-C port for power, programming, and JTAG debugging of the ESP32-C3 module Expansions 3x PMOD connectors connected to the FPGA I/O connector with 7x ESP32-C3 GPIO lines (serial, ADC, I2C) and […]

June 22, 2022 by Jean-Luc Aufranc (CNXSoft) - 12 Comments

ESP32-C5 RISC-V IoT MCU supports dual-band WiFi 6, Bluetooth 5.0 LE

Espressif Systems ESP32-C5 is an upcoming wireless RISC-V microcontroller for IoT applications that supports dual-band (2.4 & 5.0 GHz) WiFi 6 connectivity as well as Bluetooth 5.0 LE. It is the first dual-band processor from Espressif, as while the Shanghai-based company previously announced the ESP32-C6 WiFi 6 and Bluetooth 5 LE RISC-V SoC last year, it only supports 2.4 GHz frequency. Note it’s not the first dual-band WiFi 6 IoT chip on the market as NXP introduced the IW612 Wi-Fi 6, Bluetooth 5.2, 802.15.4 tri-radio solution last January, but ESP32-C5 should target different use cases. ESP32-C5 preliminary specifications: CPU – Single-core 32-bit RISC-V processor @ up to 240 MHz Memory – 400KB SRAM on-chip Storage – 384KB of ROM on-chip, support for external flash Connectivity Dual-band 802.11ax WiFi 6 in the 2.4GHz and 5 GHz bands, with 802.11b/g/n WiFi 4 standard support for backward compatibility 20MHz bandwidth for the 802.11ax […]

June 17, 2022September 5, 2022 by Jean-Luc Aufranc (CNXSoft) - 13 Comments

SONOFF POW Elite ESP32 WiFi power meter switch handles up to 20A load

SONOFF POW Elite is an ESP32-powered smart power meter switch that can handle up to 20A max load to monitor the power consumption of all appliances in a whole room. The data can be visualized in real-time on the built-in LCD or via the eWelink app, up to six-month of hourly power consumption history can be saved, and the system can also be integrated with third-party solutions such as a Home Assistant, IFTTT, and Alexa Energy dashboard. SONOFF POW Elite specifications: WiSoC – Espressif Systems ESP32 dual-core Xtenxa processor @ up to 240 MHz with 2.4 GHz WiFi 4 and Bluetooth 4.2 connectivity Wireless – 2.4GHz 802.11 b/g/n WiFi 4 (Bluetooth does not seem to be used) Power Input/Output POWR316D model – 100-240V~ 50/60Hz 16A Max POWR320D model – 100-240V~50/60Hz 20A Max Dimensions – 98 x 54 x 31mm (DIN Rail mountable) Casing Material – PC V0 (Tested with UL94v-0 […]

June 11, 2022June 13, 2022 by Jean-Luc Aufranc (CNXSoft) - 20 Comments

T-Relay-8 – An ESP32 board with 8 relays

LilyGo T-Relay-8 is an ESP32 WiFi & BLE board equipped with eight 5V relays supporting up to 250V AC or 28V DC, as well as 16-pin GPIO header for expansion. The board offers a more compact solution than the usual two-board setups with an ESP32 board and a separate 8-relay “Arduino” module, and also integrates optocouplers for improved safety. LilyGo T-Relay-8 specifications: Wireless module – ESP32-WROVER-E module with ESP32 dual-core processor with 2.4 GHz WiFi 4 and Bluetooth 4.2 connectivity, 4MB flash, 8MB PSRAM Relays – 8x HRS4H-S-DC5V 5V relays up to 250VAC/10A or 28VDC/10A with octocoupler isolation, blue LEDs for status Expansion – 16-pin header (unpopulated) with GPIOs, 3.3V, and GND USB – 1x USB Type-C for programming via optional T-U2T dongle via CH9102 USB to TTL chip Misc – Reset button, red user LED Power Supply – 12V to 24V via 2-pin terminal block Dimensions – 17 x […]

June 7, 2022June 7, 2022 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

OSM Size-0 solder-on LGA module comes with ESP32 WiFi & BLE MCU

German embedded systems company iesy’s ESP32 OSM-0F is an ESP32-based solder-on LGA system-on-module that complies with SGET OSM Size-0 (30x15mm) form factor, offers WiFi and Bluetooth connectivity, and more. The SGET Open Standard Module (OSM) standard defines four module sizes, namely Size-0 (30x15mm), Size-S (30x30mm), Size-M (45x30mm), and Size-L (45x45mm), and all the modules we’ve covered so far were powered by a Linux-capable processor. But it’s more challenging, albeit not impossible, to design a Linux-capable OSM Size-0 module, and that form factor is better suited to microcontroller-class chips like ESP32. (Technically, ESP32 can run Linux, but it’s more for show that any practical applications) ESP32 OSM-0F specifications: Microcontroller – Espressif ESP32 dual-core Xtensa LX6 MCU @ 240 MHz with 512KB RAM, Wi-Fi 802.11 b/g/n and Bluetooth/BLE Storage – 32 Mbit SPI flash Antenna – u.FL connector 188 LGA contact points with Storage – SDIO Networking – 1x 10/100M Ethernet (RMII), […]

May 18, 2022May 18, 2022 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

PikaScript – A lightweight Python implementation that runs on STM32 and other low-end MCUs

PikaScript is an ultra-lightweight Python engine that can run on microcontrollers with as little as 4KB of RAM and 32KB of Flash, while the more popular MicroPython requires at least 256kB of code space and 16kB of RAM. PikaScript was initially developed to run on STM32G030C8 and STM32F103C8 MCUs, meaning, for example, it works on the BluePill board, but it has also been ported to other platforms like WCH CH582 RISC-V MCU, WinnerMicro W806 C-Sky microcontroller, as well as other like Raspberry Pi RP2040, ESP32-C3, etc… but those are not quite as well supported with some features missing. PikaScript also permits the binding C function to a Python module through Pika Pre-compiler. PikaScript can run bare metal on the microcontroller, but also supports real-time operating systems such as RT-Thread and VSF (Versaloon Software Framework), as well as Linux. Just like MicroPython, it’s using a subset of Python 3, but I’d […]

May 17, 2022May 18, 2022 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

“ESP32-C3-0.42LCD” is a tiny WiFi & BLE IoT board with 0.42-inch display, Qwiic connector

01Space “ESP32-C3-0.42LCD” is a small (23.5 x 18 mm) board equipped with ESP32-C3 RISC-V WiFi and Bluetooth microcontroller, a 0.42-inch display, and a Qwicc I2C connector to easily add modules such as sensors. The first time I saw it, the form factor immediately reminded me of the nRF52840-based XIAO BLE Sense board I just used to test Edge Impulse machine learning framework. Both boards should have similar use cases, but XIAO BLE Sense includes a 6-axis IMU sensor, and I had to connect an OLED display, while the ESP32-C3 board already integrates a display, and I would have had to connect an external Qwicc module with an accelerometer. ESP32-C3-0.42LCD specifications: SoC – ESP32-C3FH4 SoC with RISC-V core @ 160 MHz, 4MB flash, 2.4GHz Wi-Fi, and Bluetooth 5 LE with Long-Range support Ceramic antenna Display – 0.42-inch LCD USB – 1x USB Type-C port for power and programming Expansion Qwiic I2C connector […]