In the Lab this week Rob and I have worked on the upcoming range of SolderBridge Add-ons for the SplashBase board. The first one ready for prototyping is a 24 channel Servo controller. It utilises the stacking connector allowing the SplashBase to control all the Servo’s over the network. It has a selectable chip select line, meaning you can have up to 5 of these attached to a single SplashBase. Creating a tower which is able to control 120 servo’s ( if you do this please show us what you are making! )
At its core is a LPC11U24 a low power cortex M0 with built-in USB. The LPC11 will handle the SPI communication to the SplashBase ( Or your own board ) and the pulse timing for the 24 servo outputs. A separate terminal block is provided to allow connection of an external 5v supply, as under load servo power consumption can be high. The USB port allows drag and drop re-programming of the SolderBridge and will also allow control via USB. This means you could use this board with out and SplashBase and control it directly from your PC. It can also double up as a general M0 USB development board and you could use the 24 pins that are broken out for any thing. NXP provide a Free IDE called LpcXpresso, it has a code size limit but that it’s limit is higher than the size of the M0’s flash.
What do you think? Like the idea? is there anything to add, let us know in the comments!
Update : PCBs Ordered and a New Product page setup here