Thanks for your interest. I will certainly report on my experiments with the MAKERbuino.
I have hit a small problem connecting my weather sensor to the MAKERbuino. I bought what should have been the popular Bme280 chip, with the code GY-BME/P-280 on the breakout board. It seems that others have had trouble using this particular chip with the Arduino - it is just not identified.
Connected to a regular Arduino and using a Bmp280 library (that is, without a humidity sensor), it works as expected, but only when I connect all 6 pins and use a software SPI setup (see photo). My supplier states that it can work with either I2C or SPI, but unfortunately that seems not to be the case.
When I connect my weather sensor to the MAKERbuino using I2C, the chip is not recognised - the same as with my regular Arduino Uno. Aiming to connect my sensor using SPI, I looked on the MAKERbuino circuits for the Arduino pin D10 to connect to the CSB pin on my sensor. Unfortunately this is being used for the SD Card reader (SD_CS), and not exposed on any of the breakout connections.
From the circuit diagram, pin D5 on the MAKERbuino seems to be unused, but is not available for use externally.
Has anyone any information on how to make an SPI connection to the MAKERbuino without having to surgically dig open the insides?
A test sketch run on a standard Uno with an SPI connection to my sensor - using my Raspberry Pi.
I think the MAKERbuino has potential as a useful platform for coding experiments, but the lack of basic documentation is frustrating. For instance, the MAKERbuino GitHub repository simply states “This repository is empty”. I see no use in trying to sift through the code for “legacy” gamebuino when I want to experiment using my “Inventor’s Kit” version of the MAKERbuino.
All help welcome - thanks.