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This is a typeCAD package that includes simple access to many passive components.

This package uses a named parameter-like interface. Any parameter can be included or left out. They can be access and modified later in code.

import{Schematic}from'@typecad/typecad'import{Resistor,LED,Capacitor,Diode,Inductor,Fuse}from'@typecad/passives/0805'import*as_0603from'@typecad/passives/0603'lettypecad=newSchematic('passives');letresistor=newResistor({reference:"R1",value:"4.7 kOhm"});letcapacitor=newCapacitor({value:"100 nF",voltage:"6 V"});letdiode=newDiode();letinductor=newInductor({value:"2.2 uH"});letfuse=newFuse({reference:"F1"});letled=new_0603.LED();// a 0603 instead of 0805typecad.create(resistor,led,capacitor,inductor,diode,fuse);

All of the sizes are:

• @typecad/passives/1210
• @typecad/passives/1206
• @typecad/passives/0805
• @typecad/passives/0603
• @typecad/passives/0402
• @typecad/passives/0201 *no fuses

If{ reference } is not included, the component will be auto-numbered. If there are any name collisions, the new name will be suffixed with a_1, ieR1_1.

If auto-designation is used, components have the potential to move/switch/replace each other in the PCB Editor. The first component created will be x1, then x2 and so on. If there is a component added above x1 in the code, that topmost component will now be x1 and the old x1 will now be x2. This will cause them to switch places when imported into the PCB Editor. Specifying the reference for every component avoids this.

Connectors can be created similarly.

import{Connector}from'./module/passives/connector'// create a 10-pin connector using the JST footprint passed in the last parameterletj1=newConnector({number:10,footprint:"Connector_JST:JST_SH_SM10B-SRSS-TB_1x10-1MP_P1.00mm_Horizontal"});// create a 5-pin connector using a default 2.54 mm pin-headerletj2=newConnector({number:5});

Power is abstracted intypeCAD. This package includes aPower class which progressively does more as different parameters are passed.

lettypecad=newSchematic('power');letvcc_3v3=newPower({voltage:3.3,schematic:typecad});

• creates aPower instance,voltage is optional, but allows for assertion checking voltage ranges
• a Power Flag is also created for both power and ground
  
  

letlipo=newPower({voltage:3.3,maximum:4.2,minimum:3.2,schematic:typecad});

• passing optionalmaximum andminimum allows for more voltage assertions
  
  

lettypecad=newSchematic('power');letvcc_5v0=newPower({voltage:5.0,schematic:typecad,power_name:"+5v0"});

• creates a power symbol named+5v0:power
• creates a ground symbol namedground

lettypecad=newSchematic('power');letiso_3v3=newPower({voltage:3.3,schematic:typecad,ground_name:"iso_ground"});

• creates a power symbol named3.3:power
• creates a ground symbol namediso_ground with a PWR_Flag attached