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

ESP32 board with 150 Mbps 4G LTE modem

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+  […]

Mixtile Edge 2 Kit mini PC/IoT gateway supports an external 20Ah battery pack

Mixtile Edge 2 Kit is a mini PC/IoT edge computer powered by a Rockchip RK3568 quad-core Cortex-A55 processor coupled with up to 4GB RAM and 32GB flash that features a 12V SATA + SMBUS port that allows the insertion of a 20Ah battery pack lasting up to 12 hours for locations where power may be intermittent. The 3.5-inch industrial mini PC also offers Gigabit Ethernet and WiFi 6  connectivity, three USB 3.0 ports, plus expansion with M.2 and mPCIe sockets, as well as a similar U.2 connector found in the company’s Mixtile Blade 3 SBC powered by Rockchip RK3588 processor, but routed to different interfaces. Mixtile Edge 2 Kit specifications: SoC – Rockchip RK3568 quad-core Arm Cortex-A55 processor @ up to 2.0 GHz with Mali-G52 EE GPU, 0.8 TOPS NPU, 4Kp60 H.265/H.264/VP9 video decoder, 1080p100 H.265/H.264 video encoder System Memory – 2GB or 4GB LPDDR4 Storage 16GB or 32GB eMMC […]

Badger 2040 is a programmable E-Ink display powered by Raspberry Pi RP2040

Pimoroni Badger 2040 is a Raspberry Pi RP2040 board equipped with a 2.9-inch black and white E-Ink display with 296 x 128 resolution and programmable with C/C++, MicroPython, or CircuitPython. The board is not just an ePaper badge, as it also comes with five buttons, and expansion capability through a Qwiic/STEMMA QT connector plus some pads with UART, I2C, interrupt, and power signals. Badger RP2040 specifications: MCU – Raspberry Pi RP2040 dual-core Arm Cortex M0+ running at up to 133Mhz with 264kB of SRAM Storage – 2MB QSPI flash Display – 2.9-inch B&W E Ink display with 296 x 128 pixels resolution, ultrawide viewing angles, ultra-low power consumption; Dot pitch – 0.227 x 0.226 mm USB – 1x USB Type-C port for power and programming Expansion Qwiic/STEMMA QT connector 10 pads with I2C, an interrupt pin, UART, SWC/SWD, 3.3V, GND Misc 5x front user buttons Reset and boot buttons (the […]

Bluetooth battery tester also serves as DC programmable load

While it’s possible to quickly check a battery with a multimeter, the DL24MP-150W Bluetooth battery tester and DC programmable load allows testing of all sorts of batteries from a 18650 battery to a lead-acid car battery, monitoring of multiple parameters with voltage, current, power, capacity, temperature, and more, and simulating a discharge. You can visualize the parameters on the integrated color display, or through Bluetooth connectivity, check out the parameters and history in an Android smartphone or a PC running Windows. The program also shows additional parameters like estimated CO2 emissions and electricity charge, plus export of parameters to a spreadsheet for further analysis. DL24MP-150W Bluetooth battery tester specifications: Test voltage – 2 to 200V Current: 0.2~20A Discharge power – Up to 150 W Sensor – Temperature sensor Adapter boards Charging board with DC jack, mini USB, micro USB, and USB Type-C port Battery test board for 18650, 26650, 14505 […]

Raspberry Pi UPS HAT takes two 18650 batteries (Crowdfunding)

Raspberry Pi UPS solutions have been available for years with products like PiJuice Zero, PiVoyager, or LiFePO4wered/Pi+. But the team at SB Components has designed another UPS HAT for Raspberry Pi with a holder for two 18650 batteries. The HAT is designed for 5V operation up to 2.5A, connects with the Raspberry Pi SBC through the I2C bus from the 40-pin GPIO header, and is equipped with a 0.91-inch OLED for information display. UPS HAT for Raspberry Pi specifications: Power Input – 8.4V/2A via DC jack Power Output – 5V up to 2.5A through LDO chip (GPIO header and 2x USB ports) Display – 0.91-inch OLED Host interface – I2C Misc – On/Off switch Battery support 18650 Lithium battery (not included) via holder for two batteries Battery reverse indicator Charging and voltage monitoring via TI INA219 I2C chip Battery voltage balancing with Hycon HY2213 Battery protection IC (Hycon HY2120) Dimensions […]

USB board emulates CR2032 or CR2016 coin cell battery

You can now develop CR2032 or CR2016 powered devices without having to use an actual coin cell thanks to Peter Misenko’s (Bobricius) “coin cell battery emulator CR2016/CR2032”. The USB board contains a rounded part that is compatible with CR2016 or CR2032 coin cell batteries and allows you to power your target board via USB. The board also includes holes for alligator clips to measure the current, and by extension the power consumption. Coincell battery emulator CR2016/CR2032 specifications: Power Supply 5V via Micro USB port 3V regulator 3V + GND pins for incompatible holders Power measurement – 2x alligator clip holes for Amperemeter mode  (the onboard solder jumper must be open) Dimensions – Designed for a CR2016 battery (1.6 mm thick), but an adapter can be soldered for a CR2032 battery (3.2mm thick) It’s not a size fit all solution since it will only work with a specific type of battery […]

Chhavi – An ESP32-based fingerprint sensor with optional NFC, battery (Crowdfunding)

Chhavi is a compact, wireless, touch-capacitive fingerprint sensor based on ESP32 WiFi and Bluetooth SoC that is offered with optional NFC connectivity and a battery. The Arduino programmable fingerprint sensor is equipped with Fingerprints‘ FPC BM-Lite fingerprint capacitive biometric sensor that’s much more compact and power-efficient than traditional optical fingerprint sensors. Chhavi specifications: SiP – ESP32-PICO-D4 system-in-package with ESP32 dual-core processor @ 240 MHz, 4 MB SPI flash Fingerprint sensor FPC BM-LITE Module with 99% accurate fingerprint sensing Sensor matrix: 160 x 160 pixels Number of pixels: 25,600 pixels Active sensing area: 8 x 8 mm Features – Automatic finger detection, one-to-one verification mode Durability – 10 million finger placements Connectivity 2.4 GHz 802.11 b/g/n Wi-Fi via ESP32 Bluetooth BLE 4.2/5.x via ESP32 Optional 13.56 MHz NFC via NXP PN7150 NFC I2C controller 3D antenna Display – FPC connector for display USB – 1x Micro USB port for power/charging, and […]

Challenger RP2040 WiFi board marries ESP8285 with Raspberry Pi RP2040

We’ve already seen Raspberry Pi RP2040 getting WiFi connectivity with boards like Pico Wireless Pack, Wio RP2040 mini, and Arduino Nano RP2040 Connect in ways that do not always make technical and commercial sense as in many cases, the WiFi microcontroller (e.g. ESP32) is more powerful than the Raspberry Pi microcontroller. But Invector Labs’ Challenger RP2040 WiFi board does make more sense, as the company combines Raspberry Pi RP2040 dual-core Cortex-M0+ MCU with an entry-level ESP8285 WiFi microcontroller, and also offers LiPo battery support, all that in the Adafruit Feather form factor. Challenger RP2040 WiFi board specifications: Main microcontroller – Raspberry Pi RP2040 dual-core Cortex-M0+ MCU @ 133MHz with 264KB SRAM Storage – 8MB flash Network microcontroller – Espressif ESP8285 2.4GHz WiFi 4 SoC with 1MB on-chip flash pre-flashed with Espressif’s AT command interpreter, connected to the main MCU over UART at up to 921600 bps; I/Os via Adafruit Feather […]