Skip to content

E3 - Electronic Design

mainboard mainboard

Production

Last version exported from Eagle:

  1. Traces: mainboard
  2. CutOut: mainboard

mainboard

After solder all components on the mainboard, this is the final result: mainboard mainboard mainboard mainboard

Connections and tests

mainboard After some test on the board I’ve made every possible connections and put the Raspberry Pi ZeroW on it: mainboard

Main Connections

mainboard

BOM

Part Value Device Package Description
C1 22pF 0612ZC225MAT2A CAPC3216X178N Capacitor 1206
C2 22pF 0612ZC225MAT2A CAPC3216X178N Capacitor 1206
C3 10uF CAP1206 1206 Capacitor
C4 1uF CAP1206 1206 Capacitor
C5 100nF CAP1206 1206 Capacitor
C6 100nF CAP1206 1206 Capacitor
C7 100nF CAP1206 1206 Capacitor
C8 100nF CAP1206 1206 Capacitor
CRYSTAL 16Mhz CSM-7X-DU CSM-7X-DU SMD CRYSTAL
IC1 ULN2003AD ULN2003AD SO16 DRIVER ARRAY
IC2 ULN2003AD ULN2003AD SO16 DRIVER ARRAY
J1 TERM-1X02-FABLAB TERM-1X02-FABLAB ED555DS-2DS 3.5mm terminal block, 2 positions ED555-2DS as found in the fablab inventory.
J2 TERM-1X02-FABLAB TERM-1X02-FABLAB ED555DS-2DS 3.5mm terminal block, 2 positions ED555-2DS as found in the fablab inventory.
J3 TERM-1X02-FABLAB TERM-1X02-FABLAB ED555DS-2DS 3.5mm terminal block, 2 positions ED555-2DS as found in the fablab inventory.
J4 TERM-1X02-FABLAB TERM-1X02-FABLAB ED555DS-2DS 3.5mm terminal block, 2 positions ED555-2DS as found in the fablab inventory.
JP1 PINHD-2X20 2X20 PIN HEADER
JP2 PINHD-1X5 1X05 PIN HEADER
JP3 PINHD-1X3 1X03 PIN HEADER
JP4 PINHD-1X5 1X05 PIN HEADER
JP5 PINHD-1X5 1X05 PIN HEADER
LM2596 DC-DC-STEP-DOWN-LM2596 DC-DC-STEP-DOWN-LM2596 DC-DC-STEP-DOWN-LM2596 DC/DC Step-Down Regulator based on LM2596-ADJ chip
MICRO ATMEGA328P-AU ATMEGA48/88/168-AU TQFP32-08
POWER PINHD-1X2 1X02 PIN HEADER
R1 10k RESISTOR1206 1206 Resistor
R2 0 Ohm RES-US1206FAB R1206FAB Resistor (US Symbol)
R3 0 Ohm RES-US1206FAB R1206FAB Resistor (US Symbol)
R4 0 Ohm RES-US1206FAB R1206FAB Resistor (US Symbol)
R5 0 Ohm RES-US1206FAB R1206FAB Resistor (US Symbol)
R7 80 Ohm RES-US1206FAB R1206FAB Resistor (US Symbol)
R8 1.6K Ohm RES-US1206FAB R1206FAB Resistor (US Symbol)
R9 3.3K Ohm RES-US1206FAB R1206FAB Resistor (US Symbol)
S1 6MM_SWITCH6MM_SWITCH 6MM_SWITCH OMRON SWITCH
U$1 LEDFAB1206 LEDFAB1206 LED1206FAB LED