wifi News - Page 35 of 98 - CNX Software

March 26, 2021 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

ESP32-C3-DevKitM-1 RISC-V WiFI & BLE board to launch for $8, modules for $1.8+

ESP32-C3 may be one of the most expected RISC-V processors in the IoT world, as it’s eventually expected to sell for the same price as ESP8266 and offers both WiFi and Bluetooth LE connectivity. Some engineering samples of the chip. modules and boards were distributed to developers shortly after the announcement at the end of the last year, but now it appears ESP32-C3-DevKitM-1 board will become available for $8 next month from distributors such as Mouser or DigiKey. Since I’ve never written about ESP32-C3-DevKitM-1 board let’s check out the specifications: Wireless module – ESP32-C3-MINI-1 with ESP32-C3FH4 (105°C) or ESP32-C3FN4 (85°C) 32-bit RISC-V single-core processor, up to 160 MHz, 4 MB embedded flash, 384 KB ROM, 400 KB SRAM (16 KB for cache), 8 KB SRAM in RTC Connectivity – 2.4 GHz 802.11b/g/n Wi-Fi 4 & Bluetooth LE 5.0 USB – 1x Micro USB port for power and programming via USB-UART […]

March 25, 2021March 25, 2021 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

Long range ESP32 Wi-Fi development board promises up to 1.2km range (Crowdfunding)

WiFi is not really designed for kilometer range transmission, but CNLohr previously demonstrated 1km range with ESP8266, and some directional antennas are sold to expand the WiFi range. Bison Science’s ESP32-M1 Reach Out WiFi development board has been specifically designed for long-range connectivity with up to 30 dBm (1W) transmit power and support for various types of antennas for a 1.2-kilometer range, even tested up to 1.5km in a clear day. ESP32-M1 Reach Out features and specifications: WiSoC – Espressif Systems ESP32-D0WDQ6 dual-core processor @ 240 MHz Storage – 32 Mbit flash Connectivity 2.4 GHz Wi-Fi 4 802.11 b/g/n Bluetooth 4.2/5.x Classic and Bluetooth Low Energy (BLE) QPF4219 PA (Power Amplifier) and LNA (Low Noise Amplifier) Wi-Fi RF front end (RFFE) from Qorvo with 33 dB PA gain and 15 dB LNA gain Wi-Fi transmit output power adjustable from 21 to 30 dBm (1 W) conducted Wi-Fi front end bypass […]

March 21, 2021March 21, 2021 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

Arduino WiFi & Bluetooth watch adds GPS, MicroSD slot, loses audio amplifier

LilyGO introduced the ESP32 powered T-Watch-2020 smartwatch last year with a slim form factor, a 1.54-inch LCD capacitive touch screen, WiFi & Bluetooth connectivity, and support for Arduino. In February, we noted TTGO T-Watch-2020 V3 with a built-in microphone to enable voice control, but the company has just listed TTGO T-Watch-2020 V2 adding GPS and a MicroSD card slot on its Aliexpress store for around $33. TTGO T-Watch-2020 V2 specifications: SoC – Espressif ESP32 dual-core wireless processor with 520KB SRAM System Memory – 8MB PSRAM Storage – 16MB QSPI flash, MicroSD card slot Display – 1.54-inch LCD capacitive touch screen Audio – Max98357 Class-D amplifier, buzzer/speaker Connectivity 802.11b/g/n WiFi 4 and Bluetooth 4.x/5.1 via ESP32 Quectel L76L module for GNSS (GPS, Beidou,GLONASS, QZSS) Sensors – BMA423 three-axis accelerometer with built-in step counting algorithm, activity recognition/tracking, advanced gesture recognition. Expansion – 13-pin 0.3mm pitch FPC expansion socket (shared with MicroSD card […]

March 13, 2021March 1, 2023 by Jean-Luc Aufranc (CNXSoft) - No Comments

Eduponics Mini is an ESP32-powered Smart Agriculture kit (crowdfunding)

Eduponics Mini ESP32 Smart Agriculture Board

One sector of the economy that should benefit the most from the Internet of Things is the agricultural sector, as environmental sensors are needed to optimize yields and also decrease costs with lower electricity and water usage. STEMinds Eduponics Mini Smart Agriculture kit is designed for this purpose. At the heart of the kit is an ESP32 board equipped with light, temperature, humidity, and barometric sensors, as well as interfaces to connect an external pump, a soil moisture sensor, a water quality sensor, and more environmental sensors. Eduponics Mini board specifications: Wireless module – ESP32-WROVER-B module with ESP32 Wi-Fi and Bluetooth SoC, 4MB QSPI flash, 8MB SPRAM, PCB antenna Built-in sensors BH1750 I2C light sensor BME280 I2C temperature, humidity, and barometric sensor Expansion 2-pin connector for 12V pump with built-in relay module 3-pin connector for soil moisture sensor or any other analog or digital device 4-pin connector for water quantity […]

March 4, 2021March 4, 2021 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Infineon AIROC CYW5557x WiFI 6/6E targets IoT and streaming devices

WiFi 6E is a new wireless standard that operates in the 6 GHz frequency band. We’ve already seen it used in consumer products such as premium smartphones and routers, as well as some embedded SBCs that take Qualcomm WiFI 6E cards. But now Infineon, who purchased Cypress Semiconductors last year, has unveiled the AIROC CYW5557x family of WiFI 6/6E chipsets designed for the IoT, enterprise and industrial applications for the 1×1 models, and for multimedia, consumer and automotive applications with 2×2 MIMO. Infineon AIROC CYW5557x has three SKUs that share most of the same specifications: Devices CYW55573 with Wi-Fi 6E, 2×2 MIMO CYW55572: with Wi-Fi 6, 2×2 MIMO CYW55571 with Wi-Fi 6E, 1×1 (80MHz) Wireless features WiFI Arm Cortex-R4 core Wi-Fi 6/6E, Tri-band (2.4/5/6 GHz) OFDMA, MU-MIMO, TWT, DCM 2×2 MIMO or 1×1 SISO 20/40/80 MHz channels, 1024-QAM, up to 1.2 Gbps PHY data rate STA and Soft AP mode […]

February 17, 2021 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

TTGO T-Watch-2020 V3 ESP32 watch adds microphone for voice control

Lilygo TTGO T-Watch-2020 is a thin, ESP32 smartwatch programmable with Arduino that was introduced last year. The WiFi and Bluetooth-connected watch is equipped with a 1.54-inch LCD capacitive touch screen, a Class-D amplifier, buzzer, accelerometer, RTC, and a battery. The watch is one of the top-selling devices on Lilygo’s Aliexpress store, and they must have had requirements for voice control, so the company has now launched TTGO T-Watch-2020 V3 based on the same design but adding a PDM microphone. As far as I can TTGO T-Watch-2020 V3 specifications are the same as last year’s model, except for the microphone: SoC – Espressif ESP32 dual-core wireless processor with 520KB SRAM System Memory – 8MB PSRAM Storage – 16MB QSPI flash Display – 1.54-inch LCD capacitive touch screen Audio – Max98357 Class-D amplifier, buzzer/speaker, PDM microphone Connectivity – 802.11b/g/n WiFi 4 and Bluetooth 4.x/5.1 via ESP32 Sensors – BMA423 three-axis accelerometer with […]

February 1, 2021February 2, 2021 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

FOSDEM 2021 Online February 6-7 – Hardware, Embedded & IoT talks

FOSDEM is an open-source developer event that takes place on the first week-end of February every year in Brussels, Belgium. Every year except this year, as due to COVID-19 restrictions, FOSDEM 2021 will take place online like most events these days. The schedule has been up for some time, and today I’ll look at some of the interesting talks mostly from the Embedded, Mobile and Automotive “virtual devroom” but also other tracks. Saturday, February 6, 2021 13:00 – 14:00 – From Reset Vector to Kernel – Navigating the ARM Matryoshka Long gone are the times of executing the OS in-place from memory-mapped flash upon reset. A modern SoC now comes with complex mask ROM firmware, with driver, filesystem, protocol and crypto support for loading… yet another bootloader. In his talk, Ahmad follows this chain of bootloaders until the kernel is started, stopping along the way for RAM setup, peripherial initialization, […]

February 1, 2021 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

microByte ESP32 portable game console comes with a 1.3-inch display (Crowdfunding)

microByte ESP32-portable-game console 1.3-inch display

We’ve previously seen programmable, portable game consoles powered by Espressif Systems ESP32 processor with the likes of ODROID-GO or WiFiBoy32 both equipped with a 2.4-inch display, and design to play retro games or create IoT projects with a small display thanks to I/O headers. But if for some reason, you’d like an even more compact ESP32 portable game console based on the WiFi & Bluetooth SoC, Byte-Mix Labs microByte may be what you are looking for thanks to a tiny 1.3-inch square display. microByte specifications: Wireless module – ESP32-WROVER-E module with ESP32 dual-core processor @ 240 MHz, 8 MB PSRAM, 16 MB flash, and integrated Wi-Fi and Bluetooth antenna Storage – MIcroSD card slot Display – 1.3-inch ST7789 IPS Screen with 240 x 240 pixel resolution, 60 Hz max refresh frequency Audio – On-board speaker powered by a MAX98357AETE+T I2S amplifier Controls – 13x onboard buttons with 8x Inductive direction […]