More info on the main project blog.
Tennis for two HD is a recreation of the „first“ (or second) video game ever created.
The original game was a fully analog circuit made from transistors and relais for 1958 and 1959 exhibitions at the Brookhaven National Laboratory as a demo.
It featured basic tennis rules, a simulation of gravity and air resistance and a smash function accelerating the ball hard at low angles.
This recreation uses 12b DACs and buffered DMA on a STM32L151 for a smooth experience and simulates an extended ball trail with multiple fading steps in comparison to other popular 8b variants which feel very digital and fake.
Basic tennis rules are implemented to let the correct player serve after scoring a point.
The power consumption is <140mW during operation at 5V and can be powered via micro USB.
The PCB can be used either as the controller directly by assembling 2 potentiometers on the board or with external controllers connected to JST connectors.
One unit of this version is currently exhibited in the HI-SCORE computer games museum Hannover.