Quantity,Manufacturer Part #,Digikey Part #,Notes
1,STS1024S6V5,1470-4725-ND ,Switching Power Supply
1,SGAS711,800-3802-ND ,Flammable gas sensor ($30)
1,A000005 ,1050-1001-ND ,arduino nano
2,TC33X-2-104E , TC33X-2-104ECT-ND,100K potentiometer (TY53SL)
2,CR0805-FX-2003ELF,CR0805-FX-2003ELFCT-ND,200K resistor 0805
2,TC33X-2-105E,TC33X-2-105ECT-ND ,1M potentiometer
2,CL21A106KAYNNNE,1276-2891-1-ND ,10uf ceramic for switcher
1,C3216X5R1E476M160AC ,445-8047-1-ND ,"47uf capacitor for switcher. This is somewhat high price, may not be needed (data sheet says optional)"
,,,case is 1593ARBK buy from newark or other
,,,"this bom assumes you have 1K 0805 and 0805 LEDs stocked (buy a reel), as well as reverse voltage diode and speaker, and female pin headers, terminal blocks, and barrel plugs"