T-Embed is a battery powered WiFi controller with display and rotary encoder

T Embed battery powered WiFi controller

LilyGo has launched yet another product based on the ESP32 family of microcontrollers with the T-Embed WiFi IoT controller powered by an ESP32-S3 dual-core processor, equipped with a color display and a rotary encoder, and powered by a battery. The device is programmable and can be used to control Smart Home and IoT devices connected over WiFi or Bluetooth. It also integrates a microphone and speaker, a microSD card for data logging, as well as a Grove connector and an 8-pin GPIO header for expansion.   T-Embed specifications: Wireless module – ESP32-S3-WROOM-1 module with an ESP32-S3 dual-core Xtensa LX7 processor with WiFi 4 and Bluetooth 5.0 connectivity, 4 to 16MB QSPI flash, up to 8MB PSRAM, PCB antenna; (Note it’s unclear which exact version is used) Storage – MicroSD card socket Display – 1.9-inch IPS color TFT LCD with 320 x 170 resolution (ST7789 driver), 350 Cd/m2 brightness Audio – […]

Add 18650 batteries underneath Raspberry Pi with the Red Reactor board (Crowdfunding)

Red Reactor 18650 batteries Raspberry Pi

Pascal Herczog’s Red Reactor is a battery power supply project that adds two 18650 batteries to Raspberry Pi 4, Raspberry Pi 3, or Raspberry Pi Zero board using the pogo pins for connection. The pogo pin method means the Red Reactor is attached underneath the board, as such does not prevent the user to add a HAT expansion board on top of the single board computer. There’s also a headerless version for custom setup or compatibility with boards such as Arduino, Banana Pi, Orange Pi, etc… where some soldering is required. Red Reactor’s key features and specifications: Battery holder for up to 2x flat-top 18650 LiPo batteries Battery voltage and current monitoring over I2C (INA219) for software safe shutdown control, system reset, and your own functions Safety Battery protection Resettable fuse protects against discharge between 2 cells Over-Charge, Over-Discharge, and 6A Over-Current protection Host connection Pogo pins for Raspberry Pi […]

TTGO T4 ESP32 board features 2.4-inch color display, IP5306 battery charging IC

2.4-inch display ESP32 board battery charging

LilyGO has launched yet another ESP32 board with an integrated color display. The TTGO T4 offers a 2.2-inch or 2.4-inch color display, LiPo battery support, but in contrast to many other boards from the company, features a battery charging circuitry based on Injonic IP5306 “fully-integrated power bank system-on-chip with 2.1A charger, 2.4A discharger”. The WiFi and Bluetooth IoT board is also equipped with 4MB flash, a MicroSD card socket, 8MB PSRAM, a 20-pin GPIO header and a 5-pin I2C connector for expansion, and a few buttons for programming and user control. TTGO T4 v1.3 specifications: Wireless MCU – Espressif Systems ESP32 dual-core Tensilica LX6 microcontroller @ up to 240 MHz with 520 KB SRAM, wireless connectivity RAM – 8MB SPRAM (ISSI PN18S32) Storage – 4MB SPI NOR flash, MicroSD card slot Connectivity (ESP32) 2.4 GHz 802.11 b/g/n Wi-Fi 4 Bluetooth 4.2 BR/EDR and Bluetooth LE 3D antenna and u.FL connector […]

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 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 Bagder 2040

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

18650 battery testing

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)

UPS HAT for Raspberry Pi

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 […]