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The Arduino is well know for its’ easy programming language in C (combined with C++) and the easy IDE. So if you are looking for great many peripherals, IOs etc., you should have a look at the Maple boards. Though compared to the iTeadMaple the ChipKIT Uno32 hasn’t got far from as many peripherals as that board. The ChipKIT Uno32 does actually have one less than the Arduino Uno which is very bad indeed. One of the noticable things is the number of PWM outputs. In the chart below we have tried to compare most of the processor specific features of all three boards.Ĭomparison: Uno32 vs Arduino Duemilanove vs iTeadMaple I decided to make a comparison against the Arduino Duemilanove and the iTeadMaple which is another Arduino form-factored board with an ARM Cortex-M3 processor ( review can be found here). The fix cuts the reset trace which is shared both on the SPI connector and on the shield reset pin – unfortunately the SPI connector on the Uno32 doesn’t have the common reset pin but a normal IO instead, so if connected the PIC32 will be resetting itself. In the video we tested the old Ethernet Shield (without the SPI connector at the bottom) and this worked out of the box with the Ethernet library.įor the newer Ethernet Shields with the SPI connector you have to make a small fix either on the Uno32 or on the Ethernet Shield. The only problem that can be is if the 5V electronics doesn’t sense a 3.3V signal as a High.Īn IO routing chart with comparison against the Arduino Uno, Arduino Mega and the ChipKIT Uno32 can be found here: ArduinoChipKitPinMappings.pdf So you should not be afraid of connecting the ChipKIT boards to 5V electronics.

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Here I should remember to mention that all of the IOs of the board is either 5V compliant inside the PIC or made 5V compliant thru a series resistor and the internal clambing diode. As mentioned though you have to make sure that the shield can run on 3.3V – but in most cases it can. When designing the board Digilent decided to route PIC32 pins with specific features to the right pins on the IO connectors making the board an ideal replacement for the Arduino as your shields will be pin-compatible. The board contains the same IO connectors at the same spots as the Arduino Uno. Seen from the top the board has the exact same form-factor as the Arduino Uno. Its’ larger brother, the ChipKIT Max32, holds a PIC32 device with USB OTG functionality, so if this is required you have to spend some more money on the larger version of the board. Some of the PIC32 devices comes with USB OTG functionality except for the device chosen for the Uno32. One negative aspect of the Uno32 board is the missing USB functionality. Please refer to the “Comparison” section for a deeper look on the changes. This might induce problems with some shields not compatible with 3.3V systems. The peripherals are the same though with an improvement in the numbers BUT the PIC32 is running at 3.3V while the Arduino is running on 5V. This 32-bit PIC processor is running at 80MHz compared to the Arduino Uno 16MHz and with this processor you also get an astonishing amount of 128KB Flash and 16KB RAM. In the heart of the ChipKIT Uno32 there is a PIC32MX320F128.

So I recommend you to watch the Video review first and then get back to this written review. The written review here is a summation of the video presentation. Most of the review is done in video to show you the board and the comparison in real. We will compare the board to the original Arduino of course but also compare it against some of it other “form-factored” competitors. In this review we are going to look at one of the Chipkit boards sold by Farnell, the Chipkit Uno32 which is a look-a-like of the Arduino Uno. Digilent teamed up with Microchip and designed the Chipkit family which consists of a PIC32 device with a number of different peripherals. Since then many different companies, including Google and Texas Instruments recently, have tried to cream off some of the profit in this great invention by making their own Arduino form-factored boards but with their processor family.Īnother manufacturer who has decided to try that is Digilent. When the Arduino were developed as a university project some years ago nobody knew that it would become such a big invention. The price to performance ratio was good: 10 Specifications were sufficient to design with: 10 What were the biggest problems encountered?: Shield compatibility with other Arduino shields (should be 3.3V compatible)

Was everything in the box required?: The box only contains the board itself, nothing else

Evaluation Type: Development Board, PIC32Īpplication you used the part in: Arduino form-factored development/prototyping

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