Quad GPIO Expander for Raspberry Pi Pico adds battery, display module, sensors, etc…

Raspberry Pi Pico with OLED display, 18650 battery

People are normally using MCU boards for their low cost, low-power consumption, low price and/or real-time ability. The Raspberry Pi Pico is no exception, but if you don’t care about using a large board, Waveshare created a 177 x 62 mm “expander” board for the Raspberry Pi Pico that can take four modules. The company’s Quad GPIO Expander board includes a set of female headers for RPi Pico, and four sets of 2×20 male headers for extra modules that bring support for 14500 batteries, OLED displays, RTC, relays, and other compatible modules. The expansion board also has a Micro USB port for power, and to leave the Micro USB OTG port on the Raspberry Pi Pico for other purposes. Each header pin is clearly labeled, which could be useful if using some of the pins with jumper wires instead of modules. Waveshare has hundreds of different modules and somehow decided not to clearly list the ones that are compatible with […]

Tiny Tri-color E-Ink display for Wemos D1 Mini board sells for $10

tri color E-Ink display for Wemos-D1 mini ESP8266 board

Wemos D1 Mini is one of my favorites ESP8266 boards with a cheap price, tiny form factor, and support for stackable expansion boards. Lolin has now launched a small 2.13-inch tri-color E-Ink display that is compatible with D1 mini, D1 mini Pro, and D32 Pro boards, and sells for just $9.90 plus shipping. Specifications: 2.13-inchTri-Color (red/black/white) ePaper/e-Ink display with 212×104 resolution Driver IC – Good Display UC8151D Connection to D1 mini, D1 mini Pro, D32 Pro via 10-pin connector Debugging – 8-pin unpopulated header with EPD signals (SPI, Reset, Busy…) 3.3V, GND You may wonder why the PCB reads “2.13 INCH e-Paper 250×122”, while the resolution is 212×104. That’s because the company probably reused the PCB from their 2.13-inch black and white e-Paper display with 250×122 resolution (IL3897 driver). The display can be programmed with Arduino using LOLIN_EPD, Adafruit_GFX, and Adafruit_BusIO libraries as explained in the Wiki. You’ll find three Arduino sketch samples on Github. Jean-Luc Aufranc (CNXSoft)Jean-Luc started CNX […]

ESP32-S2-HMI-DevKit-1 development kit ships with 4.3-inch touch display, 1,950mA battery

ESP32-S2-HMI-DevKit-1

Espressif Systems ESP32-S2 single-core WiFi processor features an RGB LCD interface that makes it suitable for multimedia applications, and about two years ago, ESP32-S2-Kaluga-1 Multimedia Development Board was introduced with a touchscreen display & a camera. But now the company has launched another ESP32-S2 based development kit specifically designed for HMI (human-machine interfaces) found in smart home automation controllers, smart speakers with display, smart alarm clocks, and so on. Meet ESP32-S2-HMI-DevKit-1 equipped with a 4.3-inch color LCD display and a touch panel. ESP32-S2-HMI-DevKit-1 specifications: Wireless module – ESP32-S2-WROVER module with ESP32-S2 Xtensa single-core 32-bit LX7 microprocessor, up to 240 MHz with 128 KB ROM, 320 KB SRAM, WiFi 4 connectivity, 4MB flash, 2MB PSRAM Storage – Micro SD card slot Display – 4.3-inch display with 800×480 resolution, I2C capacitive touch panel Audio – Audio amplifier, built-in microphone, speaker connector USB – 1x USB-C OTG (DFU/CDC) port, 1x USB-C debug port Expansion – SPI header, TWAI (2-wire automotive interface)/CAN header, I2C […]

ESP32 TouchDown comes with 3.5-inch display for custom control interfaces

ESP32 TouchDown Open-Source Stream Deck Alternative

Dustin Watts developed FreeTouchDeck software to interface with Windows, macOS, Linux computers and boards over Bluetooth LE using an ESP32 board connected to a touchscreen display. So far, he used off-the-shelf parts, but he has now decided to create his own hardware with ESP32 TouchDown open-source hardware board equipped with a 480×320 TFT display. ESP32 TouchDown specifications: Wireless Module – ESP32-WROOM-32D with ESP32 dual-core WiFi & Bluetooth processor,  4MB flash, PCB antenna Display – 3.5-inch 480*320 TFT screen based on ILI9488 driver connected over SPI mode, plus FT6236 Capacitive Touch Controller Storage – MicroSD card reader USB – 1x USB-C port Expansion Header with I2C, SPI, 7x GPIO, 3.3V and GND Stemma / JST-PH I2C connector Debugging – CP2102 USB-to-UART IC Misc – Piezo speaker, Power & Charge LEDs, on/off switch, boot and reset buttons, Power Supply 5V via USB-C 2-pin JST connector for battery APK2112 3.3V regulator MCP73831 battery management IC Battery voltage divider connected to GPIO35 OSHWA certification […]

Inkplate 10 ESP32 e-Paper display offers faster refresh rates (Crowdfunding)

Inkplate 10

Inkplate 6 is an ESP32 powered wireless e-Paper Display based on a recycled  Kindle E-reader display, and that e-Radionica launched in December 2019 via a crowdfunding campaign. The company says backers were “happy about the versatility and simplicity of the display” but wished for a larger display, a faster refresh rate, and extra features. This gave birth to an upgraded version: Inkplate 10. The new ESP32 wireless display comes with a recycled 9.7-inch display with 1200 x 825 resolution, up to 38% faster refresh rates, as well as extra GPIO pins, an RTC clock, a USB Type-C port, and lower power consumption. Inkplate 10 specifications: Wireless module – ESP32 WROVER module with dual-core ESP32 processor with Wi-Fi & Bluetooth 4.0 (BLE) connectivity, 8MB PSRAM, 4MB flash External storage – MicroSD card socket Display  – 9.7-inch, 1200 x 825 e-paper display with support for grayscale, partial updates, and quick refresh cycles: 1.61 second refresh time in black & white mode 1.81 […]

Year 2020 in review – Top ten posts and stats

CNX Software Year 2021

It’s this time of the year when we look back at what happened, and what may be next. 2020 did not pan out as planned in more ways than one, but there were still some interesting developments. Based on 2019 announcements, 2020 was promising to be an exciting year for Amlogic and Rockchip with the expected launch of RK3588 and S908X high-end processors for 8K capable devices,  but we’ll have to wait for 2021 for this to happen. Instead, the most interesting processor of the year from the Allwinner, Amlogic, and Rockchip offerings was probably Amlogic S905X4 processing adding AV1 hardware decoding. As pointed out in our “RISC-V 2020 highlights” post, it was a fairly eventful year for RISC-V architecture, although there’s still a long road ahead, especially for application processors. We had seen some general-purpose and Bluetooth RISC-V MCUs in 2019, but 2020 saw the launch of the first WiFi IoT RISC-V chips with ESP32-C3 and BL602, Alibaba making […]

Foenix 21-5-inch Android 8.1 smart touch computer features MediaTek MT8167A Cortex-A35 SoC

Foenix Touch Console Mediatek MT8167A Smart Display

Earlier this week, we covered Wireless Tag’s Industio 7-inch smart display powered by a SigmaStar SSD201 32-bit Arm Cortex-A7 processor and offering both Ethernet and WiFi 4 connectivity. If you’d like a 64-bit processor, a much larger display size, and faster wireless connectivity,  Innocomm has just introduced the “Foenix Touch Console”  21.5-inch open-frame touch computer based on the same MediaTek MT8167A quad-core Cortex-A35 processor as found in the PlayStation Classic, and capable of Ethernet and WiFi 5 (AC) networking. Foenix iCOM1019 touch console preliminary specifications: SoC – MediaTek MT8167A quad-core Cortex-A35 processor @ up to 1.5 GHz with PowerVR GE8300 GPU System Memory – 2GB  RAM Storage – 8GB storage, MicroSD card slot Display – 21.5-inch PCAP touchscreen display with 1920×1080 resolution Video Output – Optional HDMI 1.4a Audio – 2-channel 6W amplifier, 2x digital microphones, 3.5mm 4-pole audio jack Camera – Optional 2MP front-facing camera Connectivity 10/100M Ethernet (RJ45) 802.11a/b/g/n/ac WiFi 5 2×2 MIMO Bluetooth 4.2 and 5.0 LE […]

Industio 7-inch smart display features SigmaStar SSD201 SoM, WiFi and Ethernet

SSD201 smart display board

We previously covered the $10 Industio IDO-SOM2D01 module based on SigmaStar SSD201 Cortex-A7 processor with 64MB RAM built-in, 128MB SPI NOR flash, and designed for full HD smart displays. Today I learned Industio was the design team of system-on-module for Wireless Tag, and the latter is the only distributor of Industio branded products. The company also informed us about Industio IDO-SBC2D70 7-inch smart display based on the aforementioned SSD201 or SSD202 module and connected over Ethernet or WiFi. Industio IDO-SBC2D70 smart display specifications: SoM – Industio IDO-SOM2D01 with SoC – SigmaStar SSD201/SSD202 dual-core Cortex-A7 processor @ 1.2 GHz with 2D GPU, 64MB DDR2 (SSD201) or 128MB DDR3 (SSD202) Storage – 128MB SPI NAND flash (option up to 512MB) Video  Decoder – H.264/H.265 up to 1920×1080 @ 60 fps Dimensions – 2.95 x 2.95 cm Storge – MicroSD card socket (SDIO 2.0) Display – 1024 x 600 IPS RGB module by default (supports up to 1920 x 1080 @ 60 Hz) […]