In 2020, there are several cheap Raspberry Pi alternatives that you should consider for your projects, each offering a unique set of features and capabilities. So, without further ado, here’s our list of the best cheap Raspberry Pi alternatives in 2020.
1. Arduino Uno R3
| Processor: | ATmega328P | Memory: | 32 KB |
| GPU: | NONE | Price: | $18.00 |
The Arduino UNO R3 is a popular microcontroller and an affordable alternative to the Raspberry Pi for projects that don’t require a lot of processing power or wireless connectivity. Because it consumes between 20 mA and 80 mA, you can power it with a single 1000 mAh battery for around 3 hours.
Just like the Raspberry Pi, the Arduino UNO R3 features multiple input/output pins (of which 6 provide PWM output) that you can use to control actuators, lights, switches, or just about anything else you want.
To tell the Arduino UNO R3 what you want it to do, you can use either the Arduino Web Editor and save your code in the cloud, or you can download the Arduino IDE and run it on your favorite Linux distribution. There’s a wealth of learning resources online, so getting started shouldn’t be a problem for you.
2. Le Potato
| Processor: | Amlogic S905X SoC | Memory: | Up to 2 GB DDR3 SDRAM |
| GPU: | ARM Mali-450 | Price: | $35.00 |
Created by the Libre Computer project, Le Potato is a clone of the Raspberry Pi 3 Model B+, offering pretty much identical form-factor, port layout, and features, with one major exception: HDMI 2.0 support. That’s right, Le Potato can output 4K. It can also effortlessly play H.265, H.264, and VP9 video, making it suitable as the brain of a budget home entertainment center.
As far as software compatibility goes, Le Potato supports the Android 9/TV, upstream Linux, u-boot, Kodi, Ubuntu 18.04 Bionic LTS, RetroPie, Armbian, Debian 9 Stretch, Lakka 2.1+, and more. Because the board mirrors the Raspberry Pi 3 Model B+ in size and layout, you can use any cade or accessories made for the Raspberry Pi 3 Model B+.
The biggest downside of Le Potato is the lack of documentation and community support. While the company has published the schematics and source code for Le Potato, it has yet to create any beginner-friendly tutorials.
3. Orange Pi Zero
| Processor: | Allwinner H2 Cortex-A7 | Memory: | 256MB/512 MB DDR3 SDRAM |
| GPU: | ARM Mali GPU | Price: | $19.99 |
If you’re looking for an alternative to the Raspberry Pi Zero, you need to take a look at the Orange Pi Zero. While not cheaper (after all, the Raspberry Pi Zero costs just $5), the Orange Pi Zero is more powerful and offers a full-sized Ethernet port (limited to 100 MB/s) as well as a Wi-Fi module with a connector for an external antenna. As such, it flawlessly satisfies the needs of those who are working on IoT projects.
There’s also a full-sized USB 2.0 port, 26 expansion pins, 13 function interface pins, and a slot for microSD card. Despite all these connectivity options, the Orange Pi Zero measures just 48 mm × 46 mm and weighs only 26 grams.
The most popular operating system for the Orange Pi Zero is Armbian, a Debian and Ubuntu-based computer operating system for ARM development boards, and you can download it directly from its official website.
4. PocketBeagle
| Processor: | Octavo Systems OSD3358 | Memory: | 512 MB DDR3 RAM |
| GPU: | PowerVR SGX530 | Price: | $39.95 |
The PocketBeagle is a tiny USB-key-fob computer built around the Octavo Systems OSD3358 SoC, which includes 512 MB DDR3 RAM, 1-GHz ARM Cortex-A8 CPU, 2x 200 MHz PRUs, ARM Cortex-M3, 3D accelerator, power/battery management, and EEPROM.
Despite measuring just 56 mm x 35 mm x 5 mm, the PocketBeagle has 72 expansion pin headers with power and battery I/Os, high-speed USB, 8 analog inputs, and 44 digital I/Os. All Raspberry Pi users will appreciate that a Debian-based distribution is provided for it on the official website. All you need to do to get started is download it and transfer it to a microSD card.
The owners of PocketBeagle have used this tiny Raspberry Pi alternative to create robots, drones, DIY Alexa, funny wearable hats with LEDs and built-in speakers, arcade machines, automatic irrigation systems, and much more. Since so much has already been done with the PocketBeagle, you can simply pick up an interesting project and learn by replicating it.
5. BBC micro: bit
| Processor: | ARM Cortex-M0 | Memory: | 16 KB RAM |
| GPU: | NONE | Price: | $17.95 |
The BBC micro: bit is the best Raspberry Pi alternative for learning. It measures just 4 x 5 cm and comes with an integrated compass, accelerometer, as well as light and temperature sensors, so you can immediately have fun with it without spending money on accessories. In addition to the two sensors, the BBC micro: bit is also equipped with 25 individually programmable LEDs, 2 programmable buttons, physical connection pins, radio and Bluetooth, and one USB port.
You can use the LEDs to display text, numbers, and even primitive images, trigger code on the device with the two physical buttons, interface with other electrical components with the physical connection pins, create a Rock, Paper, Scissors game with JavaScript that takes advantage of the built-in accelerometer, or use the radio to send messages to other micro:bits.
The BBC micro: bit can be programmed either directly in Python or with the help of the MakeCode Editor, which works with pre-created blocks of code that you can simply drag and drop to tell the device what you want it to do. Many fun programs for the BBC micro: bit published and explained on the official website. Unfortunately, the company behind this innovative single-board computer seems to have abandoned it.
