A few pictures of my eCCR electronics playground. Physical testbench setup with development board and the first version custom PCBs. Main features of the first version: solenoid control, ppO2 display for three cells and the ppO2 decision value, two fixed setpoints, some alarms, etc. In the last pictures a prototype HUD setup with LEDs indicating deviation from ppO2 setpoint.
 1_Proto_Board.jpg |  2_New_LCD.jpg |  3_First_PCBs.jpg |  4_Board1.jpg |  5_Board2.jpg |
 6_Calibration1.jpg |  7_Calibration2.jpg |  8_Calibration3.jpg |  8_Power_Supply_and_ADC_Side.jpg |  9_Sensors_Attached.jpg |
 10_display.jpg |  10_Yet_Another_New_Display-PLED.jpg |  11_Yet_Another_New_Display-PLED_close.jpg |  IMG_3931_c.jpg |  IMG_3934_c.jpg |
 IMG_3937_c.jpg |  IMG_3938_c.jpg |