mark gunderson| Quantity | Component name | |
| 1 | × | Micro:Bit with AAA battery pack |
| 1 | × | Optional second Micro:Bit with AAA battery pack for remote |
| 1 | × | Wooden railroad switch (must be active) |
| 1 | × | 9g servo |
| 1 | × | Reed switch |
| 4 | × | Alligator clips |
| 1 | × | Battery powered locomotive (like the Brio Mighty Red Locomotive) |
Automating Brio Trains with a Micro:Bit
A couple Micro:Bits, a 9g servo, and a scavenged reed switch conspire to make wooden trains fun again.