Pimoroni Omnibus/Pico Decker
These are two expansion modules that are designed to work with Pimoroni “Pack” boards. Modules provide the ability to connect multiple systems to a Pico. As in the previous case, there are no particularly high technologies here, just additional contacts.
On the one hand, this is good, since the use of the system is not particularly complicated. On the other hand, problems sometimes arise, since boards sometimes have common GPIO pins. But if you work with I2C or SPI, then there will be no problems, because in this case the devices are identified, each is assigned its own address.
In any case, this module has much more advantages than disadvantages. If you need advanced functionality of Raspberry Pi Pico, then the module is definitely recommended for use.
Pimoroni Pico Display
Everything is clear here – this is a display module that is designed to work with the Raspberry Pi Pico. The display diagonal is 1.14 inches, the resolution is 240 x 135 pixels. Display – IPS LCD, the module is equipped with four buttons and an LED. The module is connected to the 40-pin GPIO “raspberries”, however, only a few pins are used for operation. It turns out that when the display is connected, access to the GPIO is blocked.
Display control is implemented using MicroPython or C/C++ scripts. All this has already been tested and works well. Those who have tried the display say that there are no problems with it – it just connects, it’s just controlled.
The MicroPython library is also relatively easy to learn. It is better, of course, to start with simple projects, if there is no experience with it, and then move on to more complex ones. In general, if you need to display text, work with video or images, then the display is recommended for use.
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Uctronics TinyML Learning Kit
A module that is useful for mastering machine learning. The Raspberry Pi Pico chip, of course, is not capable of processing large amounts of data, but for some tasks in machine learning it is quite suitable. For example, for basic recognition of not particularly complex images. The module comes with a 2MP SPI camera, which can be used to recognize individual objects, or, if there is a good training model, then people’s faces.
The camera and the “raspberry” are simply not able to provide a normal video stream. 1 frame per second is all that this bundle is suitable for. But even in this case, there are no problems with image recognition. For example, the Arduino provides 1 frame every 10 seconds, so the “raspberry” with the module is better than anything else anyway.
Pimoroni Captain Resetti
This is the simplest module of all presented. All it does is add a reset button, which is a must for many developers. Why might it be needed? For example, for a new firmware, you need to disconnect the microcontroller, press and hold BOOTSEL, and then reconnect everything. If you perform the procedure more often, you can break the USB port of the board.
The Reset button in this case decides everything, and this module costs only 2 US dollars. This is not so expensive, given that the threat to the board port is eliminated – it is not so easy to re-solder it after a breakdown, and not all of us have the equipment necessary for this.
Pimoroni Pico Explorer
Well, this is the most advanced and, at the same time, expensive module. Its cost is as much as $30, which is almost 10 times the cost of the board itself. For this money, the developer gets several additional features and capabilities at once, including a set of GPIO pins, a small LCD display, the ability to connect electric motors, and compatibility with boards.
The developers claim to have created their module to provide easy testing of various electronic components with the Raspberry Pi Pico. All this can be extremely useful for creating both simple and deployed, complex projects based on a microcontroller. Yes, the add-on is a little expensive, but it adds several interesting features at once.
Based on the combination of the microcontroller and the Pimoroni Pico Explorer module, you can create, for example, a functional robot, or a smart home system, and you never know what else – there is room for imagination here.
Well, that’s all for today – if you have something to offer in addition to the modules and extensions already listed, then let’s discuss it in the comments. In addition, we leave a survey on the usefulness of these modules.