Labels Milestones
BackSwitch, separate symbol D 8x DIP Switch, Single Pole Single Throw (SPST) switch, small symbol D 6x DIP Switch, Single Pole Single Throw (SPST) switch, small symbol D Switch, three position, dual pole double throw | | | | R2, R5 | 1 | Conn_01x07 | \*(optional) SIP socket, 2.54 mm, 1x2 (see [build notes](build.md)) | | | | J3, J4, J5 | 3 | 2N3904 | Small Signal NPN Transistor, TO-92 | | | | | | | R30 | 1 | LM358 | Low-Power, Dual Operational Amplifiers, DIP-14/SOIC-14"/>