Archive for March 2014

When the compiler matters (Part 1)

Part 1 Recently, I worked on a library to manage LED strips. It worked perfectly using the Window’s version of Arduino. It worked as well on the GNU/Linux’ version with a LED strip… but not with another strip ! An advanced issue for an advanced headache… In the Arduino environment , when the “verify” or […]

Picoscope (Part 1)

As technology improves, the size, performances and cost of measurement instruments changes over the time. Few months ago, we described the RIGOL 1052E which was pretty new at this time. As we were looking for a new equipment for the lab we decided to compare the various products available from the market. Before getting into the […]

Memory (Part 5)

Part 1, 2, 3, 4, 5, 6, 7 The code sample from the previous post shows how to read and write bytes on the EEPROM chips. Just fine !  But what about reading and writing other types of data such as short and long integers or floating point values ? This post contains an example of use of the PlainSPI_EEPROM library which […]

Memory (Part 4)

Part 1, 2, 3, 4, 5, 6, 7 So, ready to test your new EEPROM chips ? Let’s go. For sake of simplicity, we tested the PlainEEPROM_SPI library on all chips which are available in 8 pins PDIP (Plastic Dual In Line Packages): 25LC080A, 25LC160, 25LC320, 25LC320A, 25LC640, 25LC640A, 25LC256, 25LC512 and 25LC1024. Next picture illustrates one of these chips where the pin#1 is identified with an indent or paint dot mark. All […]