wifi News - Page 34 of 97 - CNX Software

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 […]

January 28, 2021April 12, 2023 by Jean-Luc Aufranc (CNXSoft) - No Comments

Agromon smart agriculture wireless transmitter connects ModBus RS485 sensors to WiFi, LoRaWAN, Sigfox, or NB-IoT

The Internet of Things has many applications including smart agriculture . A few months ago, I talked to a local shrimp farm owner who used Arduino and ESP8266 boards to monitor water and activate pumps only when needed to get shrimps healthy and save on his electricity bill. He built his own solutions, but there are also companies offering easy-to-use smart farming solutions such as Malaysia-based Wondernica’s Agromon “interface wireless transmitter” designed specifically for smart agriculture applications. Agromon has two variants with support for 2 sensors (WR-AGRO-2S) or 3 sensors (WR-AGRO-3S) that share the following specifications: Connectivity – WiFi, Sigfox (RCZ 2/4), LoRaWAN, NB-IoT Sensor Interface – Modbus RS485 (analog input / 4-20mA / 12V-14V output) Power Supply – 12V DC (tolerance up to 14V); supports batteries, solar power, or power adapter Power Consumption – Sleep Mode: 3 mW Dimensions – 130 x 90 x 40mm Ingress Protection – IP67 […]

January 19, 2021January 19, 2021 by Saumitra Jagdale - No Comments

MicroMod modular ecosystem offers M.2 microcontrollers cards and carrier boards

MicroMod is a modular interface ecosystem for quick embedded development and prototyping. MicroMod comes with two components, that is a microcontroller “processor board” and a carrier board. PC industry’s M.2 connector is the interface between these two components. The carrier boards are for the usage of various peripherals and the processor board act as the brain of the application system. MicroMod processor board has a dimension of 22×22 mm that can be easily fitted on the carrier boards. Although, the original M.2 standard was dedicated to swapping out peripherals where a user could swap one component with the other one. The MicroMod standard is for swapping out microcontrollers according to the functional and application requirements. MicroMod Processor Boards Artemis Processor Board comes with an Ambiq Apollo 3 Blue Arm Cortex-M4F with BLE 5.0 running up to 96MHz and a power rating of less than 5mW. It also supports the TensorFlow […]