Embedded and hobbyist electronics specialist Waveshare has launched a pair of latest growth boards constructed across the Espressif ESP32-S3 microcontroller and a alternative of SIMCom SIM7670G or A7670E mobile modems — for Web of Issues (IoT) connectivity the place Bluetooth and Wi-Fi aren’t out there.
The ESP32-S3-A7670E-4G is a multi-functional and high-performance microcontroller growth board designed by Waveshare,” the corporate writes of the primary of the 2 units, “[with] built-in A7670E 4G communication module, onboard OV [Omnivision] sequence digital camera interface, TF [SD] Card slot, RGB colourful LED, 18650 battery holder, battery voltage measurement IC, photo voltaic panel charging interface, and different peripherals.”
Waveshare’s newest ESP32-based growth board provides a alternative of 4G or 4G/2G mobile connectivity choices. (📷: Waveshare)
Equipped in an oblong acrylic housing, the ESP32-S3-A7670E-4 and near-identical ESP32-S3-SIM7670G-4 — delivered to our consideration by CNX Software program — boast very comparable specs. They use an Espressif ESP32-S3R2 system-on-chip with two Tensilica Xtensa LX7 cores working at as much as 240MHz, have 512kB of static RAM (SRAM), 384kB of flash ROM, 2MB of pseudo-static RAM (PSRAM), and 16MB of flash storage. There are built-in single-band 2.4GHz Wi-Fi and Bluetooth Low Vitality (BLE) radios, an on-board Omnivision OV2640 UXGA digital camera, and assist for battery charging by way of USB or photo voltaic inputs.
The place the 2 differ is of their alternative of mobile modem. The ESP32-S3-A7670E-4G makes use of, because the title suggests, the SIMCom A7670E module — offering 4G LTE-FDD and LTE-TDD Cat. 1 and 2G mobile connectivity with voice name assist, together with World Navigation Satellite tv for pc System (GNSS) reception together with GPS. The ESP32-S3-SIM7670G-4G, against this, makes use of the SIMCOM SIM7670G module — which drops 2G and voice name assist and LTE-TDD capabilities, although retains GNSS connectivity whereas including Galileo constellation compatibility.
Each boards embrace an Omnivision digital camera sensor and assist on-device machine studying workloads. (📷: Waveshare)
In each circumstances, the modems can be utilized to offer information connectivity each to tasks working on the ESP32 microcontroller and on exterior units — both offering entry to the modem over USB or utilizing the ESP32 to offer a Wi-Fi hotspot tethered to the mobile connection.
The ESP32-S3-A7670E-4G and ESP32-S3-SIM7670G-4G at the moment are out there to order on the Waveshare retailer for $42.99 and $48.99 respectively, earlier than quantity reductions.
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