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Below, you’ll find an introduction to our PCB rulers, their functioning and if applicable, the details required for mounting.

LOGIC variant

Board function:

Implements logic functions by using NAND gates. The two inputs (A and B) may be changed using push buttons, meaning the logic values of ‘0’ and ‘1’ when released or pressed, respectively. The values of the various logic functions are shown in the corresponding LEDs. The circuit is powered via a micro USB connector.

Implemented logic functions:

  • A 
  • B 
  • NOT(A) 
  • NOT(B) 
  • A AND B 
  • NOT(A AND B) 
  • A OR B 
  • NOT(A OR B) 
  • A XOR B

Connection diagram:

IN PCB RULER LOGIC V1p0 [No Variations] SCH 2023 03 13

Mounting diagram:

IN PCB RULER LOGIC V1p0 [No Variations] AsmDoc 2023 03 13

BOM:

Designator Quantity Part Number Comment / Name Package
C1, C2, C3 3 CAP SMD 1206 CER
Y5V 10uF 10V		 10uF 1206_CAP
CON1 1 CON_USB _MICRO_A
B_629105150921		 WUERTH_6291051
50921		 USB_MICRO _AB_WUE
RTH_629105150921
IC1, IC2, IC3 3 74HC00D,653 74HC00D,653 SO-14
LD1, LD2, LD3, LD4, LD5, LD6, LD7, LD8, LD9 9 LTST-C170KGKT LTST-C170KGKT (GRE) LED_SMD _0805_GRE
R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11 11 RES SMD 0805 1%
680R		 680R 0805_RES
SW1, SW2 2 SW_DTSM 32N DTSM 32N SW_DTSM-32N

AC DET variant

Board function:

By keeping the push button pressed, a LED indicates the presence of AC voltage nearby. It is powered by a CR2032 battery.

Connection diagram:

IN PCB RULER AC DET V1p0 No Variations SCH 2023 03 13

Implemented logic functions:

IN PCB RULER AC DET V1p0 No Variations AsmDoc 2023 03 13

BOM:

Designator Quantity Part Number Comment / Name Package
BH1 1 BATTERY_HOLDER _CR2032 KEYSTONE 3002 (CR2032) BATTERY_HOLDER _KEYSTONE_3002
LD1 1 3SM3-SMD LTSTC170CKT (RED) LED_SMD_0805_RED
R1 1 RES SMD 1206 5% 100M 100M 1206_RES
R2 1 RES SMD 1206 1% 33k 33k 1206_RES
R3 1 RES SMD 1206 1% 110R 110R 1206_RES
SW1 1 SW_DTSM 32N DTSM 32N SW_DTSM-32N
T1, T2, T3 3 BC846 BC846 SOT-23