@note Footprints are named according to gEDA/gaf and PCB footprint naming convention.
refdes|device|value|footprint|comment|qty :---|:---|:---|:---|:---|:--- U3|CRYSTAL|5MHz|CRYSTAL 300||1 CONN1|CONNECTOR_4||USB-Type-A-Connector||1 U4|24Cxx|24LC256|DIP8|This chip is optional. Use socket.|1 D3|LED|yellow|LED3||1 D2|LED|orange|LED3||1 U6|MAX232|MAX3232CPE|DIP16|Bug on Pin10. The transmitter inputs do not have pullup resistors. Connect unused inputs to GND or VCC. Connect Pin10 to J2 Pin9 with extra wire as a workaround. This circuit is generating RS232 voltages of about +/- 5.5VDC. MAX3232EPE+ works as well (needs extended reset pulse). |1 J2|HEADER10|male|HEADER10_2||1 D1|LED|green|LED3||1 R15,R16,R17|RESISTOR|220R|ACY600|Value need not match exactly.|3 C5|POLARIZED_CAPACITOR|10uF 16V|RCY100P||1 R19,R20|RESISTOR|10K|ACY600||2 R4,R5,R8,R9|RESISTOR|100R|ACY100S||4 R6,R7|RESISTOR|100R|ACY500||2 R1|RESISTOR|1K|ACY600||1 J3|HEADER3|male|JUMPER3||1 U2|7432|74HC32|DIP14||1 R2|RESISTOR|22K|ACY600||1 J1|CONNECTOR_9|male|JUMPER9|Note an angled one extends beyond the PCB's edge.|1 R10|RESISTOR|464R|ACY600||1 R11,R12,R13,R3|RESISTOR|100R|ACY600||4 R14|VARIABLE_RESISTOR|200R|Trim-Resistor-500|Use a transparent one, if available.|1 U7|AMS1117|3.3V|SOT223|At least 3x3cm tab copper area is missing!|1 U1|P8X32A||DIP40|This chip is precious, use socket.|1 C15|CAPACITOR|100nF|RCY100|Blocking Cap for 24LC256.|1 C12,C13|CAPACITOR|100nF|RCY100|Blocking Cap for P8X32A.|2 C14|CAPACITOR|100nF|RCY100|Blocking Cap for 74HC32.|1 Q1|IRLML6402||SOT23||1 CONN2|CONNECTOR_4||JUMPER4||1 C3|POLARIZED_CAPACITOR|10uF tantalum|RCY100P||1 U5|AMS1117|3.3V|SOT223||1 V1|THERMISTOR +t GradC|RXEF075|RCY200|Also known as "Polyfuse". Size is "1.5A" instead of "1A" as mentioned on PCB. |1 D6,D8|DIODE|1N4007|ALF500|We used SY360/1 here.|2 D4,D5,D7|LED|red|LED3||3 R18,R21,R22|RESISTOR|220R|ACY600|Value need not match exactly.|3 C1|POLARIZED_CAPACITOR|1000uF 6.3V|RCY100P||1 Z1|ZENER_DIODE|6V8 @ 1.3W|ALF500||1 C2,C4|CAPACITOR|100nF|RCY100||2 C8|CAPACITOR|100nF|RCY100|Please ignore PCB's polarized footprint.|1 C9|CAPACITOR|100nF|RCY100|Please ignore PCB's polarized footprint.|1 C10,C6,C7|CAPACITOR|100nF|RCY100|Please ignore PCB's polarized footprint.|3