Modular Clock Electrical Schematic
Electronics designed in Fritzing for a clock. The far left section is the main module and includes a real time clock. It also displays the first digit in the mechanism it's attached to (still working on that) and transmits the remaining numbers to the next module. the next module displays the first number and passes the rest along to the next module. This continues until there are no more modules. The design in this picture includes 1 master and 3 slave modules.