Pico Wireless is an ESP32 add-on board for Raspberry Pi Pico

Raspberry Pi Pico Wireless

I understand hardware is cheap now, but the madness has to stop! Pimoroni Pico Wireless is an upcoming add-on board for Raspberry Pi Pico adding a MicroSD card and ESP32 WiFi & Bluetooth module. While it’s a nice idea to add wireless connectivity to Raspberry Pi Pico, ESP32 is a dual-core Xtensa LX6 processor clocked at 160 to 240 MHz with WiFi, Bluetooth, and plenty of I/Os that should be able to handle most tasks better than Raspberry Pi RP2040 dual-core Cortex-M0+ processor clocked at 48 MHz by default, although we’ve also seen it overclocked up to 252 MHz. As shown above, Pico Wireless is just a separate board connected to Raspberry Pi Pico over SPI through one of those “GPIO expander” boards, specifically Pico Omnibus. The prototype above features an ESP32-WROOM-32E module with 4 MB SPI flash, a PCB antenna for WiFI 4 and Bluetooth 4.2/5.x LE connectivity, as well as a MicroSD card slot. There’s also a user […]

TinyS2 ESP32-S2 board is designed for battery operation

TinyS2 ESP32-S2 board

Unexpected Maker has launched a follow-up to the ESP32 based TinyPICO board with TinyS2 board equipped with an ESP32-S2 WiFi processor featuring 4MB flash and 2MP embedded PSRAM. The new board is still designed with a LiPo battery charging circuit, comes with an onboard RGB LED, and while it is compatible with TinyPICO form factor, it has become a little longer with a 41 x 17.8mm footprint to accommodate for extra I/Os. TinyS2 specifications: WiSoC – Espressif Systems ESP32-S2FN4R2 single-core processor @ 240 MHz with 4MP SPI flash, 2MP PSRAM Connectivity – 2.4 GHz 802.11b/g/n WiFi 4 plus 3D antenna USB – 1x USB Type-C port for power and programming Expansion – 12 + 11-pin headers for up to 17x GPIOs, SPI, I2C, UART, ADC, DAC, 5V, 3.3V and BAT signals Misc – Boot and Reset buttons, battery charging status LED, power LED, user-programmable RGB LED that can be shut down to reduce deep sleep current Power Supply 5VDC input […]

The Tiniest Raspberry Pi RP2040 Boards – Tiny 2040 & Adafruit QT Py RP2040

Smallest RP2040 boards

The Raspberry Pi Pico officially board for RP2040 MCU has a lot of free space on the PCB. So when third parties made their own board they either added features like camera, display, and sensors as found on like on Arducam Pico4ML board, while others “cut the fat” to the minimum. Some of the tiniest Raspberry Pi RP2040 boards are Pimoroni Tiny 2040 & Adafruit QT Py RP2040, both of which come with the dual-core Cortex-M0+ MCU, a USB-C port, two buttons, some I/O ports, and not much else. Tiny 2040 Pimoroni Tiny 2040 specifications: MCU – Raspberry Pi RP2040 dual-core Cortex-M0+ [email protected] up to 133Mhz with 264kB of SRAM Storage – 8MB QSPI flash USB – USB Type-C port for power, data, and programming I/Os – 2x 8-pin castellated and through holes for 12 I/Os pins including 4x analog inputs, SPI, I2C, UART, 5V, 3.3V, and GND Debugging – 3-pin SWD interface Misc – Boot and Reset buttons, user-programmable […]

simpleRTK2B-SBC packs 3 u‑blox ZED-F9P RTK GNSS receivers for centimeter-level GPS positioning

simpleRTK2B-SBC RTK GNSS board

Real-time Kinematic (RTK) relative positioning technique allows for 1-3cm positioning accuracy with data derived from satellite-based positioning systems such as GPS, BeiDou, GLONASS, Galileo, and NavIC. We’ve previously covered Skytraq PX1122R RTK GNSS module as well as SBG Systems Ellipse-D industrial-grade inertial navigation system featuring the technology, and now Spain-based ArduSimple has announced the simpleRTK2B-SBC single board computer that aims to “simplify the development of centimeter-level positioning solutions supporting real-time kinematics (RTK)” via up to three u‑blox ZED-F9P RTK GNSS receivers. simpleRTK2B-SBC board features & specifications: MCU – STMicro STM32F7 Cortex-M7 microcontroller GNSS Positioning 184-channel u-blox ZED-F9P engine Configuration options 2x ZED-F9P for position + heading 3x ZED-F9P for position + full attitude (roll, pitch, yaw) Navigation rate up to 20Hz Position accuracy down to 1 centimeter GPS: L1 & L2;  GLONASS: L1OF & L2OF;  Galileo: E1 & E5b;  BeiDou: B2I & B2I; QZSS and SBAS Up to 4 integrated SMA for various RF options Configuration flexibility – standalone, standalone […]

LilyGo sells Open-Smartwatch open-source hardware ESP32 watch by “Paul’s 3D Things”


We’ve previously covered three variants of LilyGo T-Watch-2020 smartwatch based on ESP32 WiFi & Bluetooth SoC with TTGO T-Watch-2020 (V1) launched about a year ago, following by T-Watch-2020 V3 with a microphone for voice control, and T-Watch-2020 V2 with GPS. The company has recently launched a new rounded smartwatch based on ESP32-PICO-D4 SiP with a twist as they did not design it themselves and instead partnered with “Paul’s 3D Things” for the Open-Smartwatch, and just handle manufacturing and production. LilyGo Open-Smartwatch “Light Edition” specifications: Wireless module – LILYGO T-micro32 module based on ESP32-PICO-D4 module with dual-core ESP32 processor, 4MB FLASH, ceramic antenna or u.FL antenna connector Connectivity – Bluetooth 4.2 BR/EDR BLE and WiFi 4 2.4GHz 802.11 b/g/n Display –  1.3 inch circular LCD with 240×240 resolution USB – Micro USB for charging and programming Sensor – 3-axis BMA400 accelerator Debugging – USB to TTL via CH340E chip Misc -Reset button, 3x user buttons, DS323M RTC Power Supply 5V/1A power […]

Made in Thailand CorgiDude RISC-V AI board aims to teach machine learning

CorgiDude AI Learning Kit

There’s a relatively small but active maker community in Thailand, and we’ve covered or even reviewed some made in Thailand boards including ESP8266 and ESP32 boards, a 3G Raspberry Pi HAT, and KidBright education platform among others. MakerAsia has developed CorgiDude, a board based on the version of Sipeed M1 RISC-V AI module with built-in WiFi, and part as a kit with a camera and a display used to teach machine learning and artificial intelligence with MicroPython or C/C++ programming. CorgiDude board specifications: AI Wireless Module – Sipeed M1W Module with Kendryte K210  dual-core 64-bit RISC-V RV64IMAFDC CPU @ 400Mhz with FPU, various AI accelerators (KPU, FFT accelerator…),  8MiB on-chip SRAM Espressif ESP8285 single-core 2.4 GHz WiFi 4 SoC plus IPEX antenna connector Storage – MicroSD card slot Camera I/F for 2MP OV2640 sensor up to 1280 × 1024 (SXGA) @ 30 fosm SVGA @ 30 fps, or CIF @ 60 fps Display I/F for 1.3-inch RGB IPS display with […]

Piper Make: First Drag-and-Drop Coding Platform for Raspberry Pi Pico

Piper Make Raspberry Pi Pico

In 2019 we saw Piper’s Computer Kit 2, which was a DIY Raspberry Pi 3 Computer for educational purposes. The kit was for kids to educate them on building their own computers and the basics of programming in electronics. This year the company has come up with another educational platform. Meet Piper Make. The newly launched Raspberry Pi Pico is capable of a wide range of applications but directly working on the development board for exploring these applications could be difficult for beginners. Additionally, prototyping a project or an application before implementing it is an ideal way for starting. Hence. Piper has launched its first drag-and-drop coding platform for the Raspberry Pi Pico which allows hands-on prototyping for the users. Piper Make platform has an interface that supports Chromebooks and other computers, thus making it flexible for users. It is free for users to explore hands-on with the Raspberry Pi Pico. It also features collaborating functionality that allows remote learning […]

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 external pump, soil moisture sensor, water quality sensor, and more environmental sensors. Eduponics Mini board specifications: Wireless module – ESP32-WROVER-B module with ESP32 Wi-Fi and Bluetooth SoC, 8MB SPRAM, external antenna connector 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 sensor 4-pin header (unpopulated) for DHT11 / DHT22 sensor I/O Extension header to connect extra […]