Hardware Hacking/Modding: Raspberry Pi and More
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Raspberry PI Pico W Web Server: a Cheap MicroPython Solution
With the built-in WiFi chip, we can create a very cheap Raspberry PI Pico W web server running MicroPython, to host very simple HTML pages and create small and inexpensive websites
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Sparkfun’s IoT Redboard features R3 form factor and supports FreeRTOS
The IoT Redboard by SparkFun features a ES32 WROOM module enabled with Wi-Fi and Bluetooth 4.2. This development kit also provides an SD Card for data logging, a USB type-C, a Qwiic connector, a battery gauge and several other peripherals.
The ESP32 module found in the IoT Redboard is the ESP32-D0WD-V3 which features a dual-core Xtensa LX6 MCU. The base frequency starts at 80MHz and it can be adjusted up to 240MHz. The LX6 MCU has also been seen in other boards already (i.e. BomberCat, FireBeetle 2). According to the product page, the device includes 448KB ROM, 520 SRAM and 16KB SRAM in RTC.
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Raspberry Pi Zero 2 W board gets Raspberry Pi CM3 adapter
A couple of months ago, we wrote about the Raspberry Pi Compute Module 3E (CM3E) equipped with the Raspberry Pi RP3A0 SiP found in the Raspberry Pi Zero 2 W board. It looks like an OEM product from Raspberry Pi trading, and as such is close to impossible to purchase.
But if somehow, you’d like to have the guts of the Pi Zero 2 W into CM3 module form factor, Waveshare has designed the Zero-to-CM3 adapter for the Raspberry Pi Zero 2 W that should be compatible with most carrier boards designed for Raspberry Pi CM3 or CM3+.
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Motor SHIM driver board for Pico review
The Motor SHIM features a DRV8833 dual H-bridge motor driver. This means it can drive a maximum of two motors – the rival Kitronik Robotics Board can handle four, but then it is considerably larger.
Rather than screw terminals, the Motor SHIM features two small two-pin JST-ZH connectors. For each, just plug in one end of a cable (not supplied), and the other end into a Motor Connector SHIM on a micro metal-gear motor. You can also buy motors with the JST‑ZH connector pre-soldered – to the top or side, depending on your mounting preference. Note that the Motor SHIM won’t work with motors equipped with six-pin Micro Metal Motor Encoders, however.
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Hackaday Podcast 182: Sparkpunk Photography, Anti-Xiomi Air Filters, And Keyfob Foibles
Editor-in-Chief Elliot Williams and Managing Editor Tom Nardi are here to bring you the best stories and hacks from the previous week (and maybe a little older). Things kick off with news that the Early Bird tickets for the 2022 Hackaday Supercon tickets sold out in only two hours — a good sign that the community is just as excited as we are about the November event. But don’t worry, regular admission tickets are now available for those who couldn’t grab one out of the first batch.