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Breadboard Power Supply (BBPS)
Pix/Vids (click to enlarge) Schematics Info

Production PCB

 

Video: BBPS Operation

 

 

 

Eagle CAD: BoM (Bill of Materials)

Description:

Dual voltage power supply designed for breadboards.

 

Features:

 - Fits onto most breadboards with 0.1" spacing on power rails

 - Mounts on the breadboard's power rail; it does not waste tie-point real estate.

 - With the exception of the two voltage regulators, all discrete components are through-hole for easy soldering

 - 5v or 3.3v DC output

 - 3 common power input types

 

Power Input: 3 types

 - 2.1mm DC barrel jack: Input 7v to 20vDC

 - screw terminal:  Input 7v to 20vDC

 - miniUSB: 5vDC

 

Power Output:

 - 5v or 3.3vDC, jumper selectable.

 - Output current limit is 1000mA regulated by NCP1117

5-Button Switch Module
Pix (click to enlarge) Schematics Info

Production PCB

   

Eagle CAD: BoM (Bill of Materials)

Description:

5-button switch module for use with a parent device's configuration menu, etc.

 

Features:

 - 5 momentary switches connected through 10k ohm pull-up resistors to a common anode

 -  headers are connected to '+', Left, Top, Center, Bottom, Right  and '-' switches marked "+LTCBR-" on both sides of the PCB

 - All discrete components are through-hole for easy soldering

 - Breadboard friendly

 

Real Time Clock (RTC)
Pix (click to enlarge) Schematics Info
 

 

  

Eagle CAD: BoM (Bill of Materials)

Description:

Real Time Clock using higher precision PCF8523.

 

Features:

 - 5-pin male header for connection to your breadboard.

 - JST PH 2-wire connector to a 3.7v LiPo battery.

Piezo Buzzer
Pix (click to enlarge) Schematics Info
   

Eagle CAD: BoM

Description:

Piezo buzzer.

 

Features:

 - 3.3v or 5v operation

 - breadboard friendly

Updated 2021-April-07

 

Tags: Breadboard Power Supply, RTC, 5-button switch module

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