Reference layout
Letterbox Sensor V2
hierle-letterbox-sensor-v2-letterbox-sensor-v2-layout
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hierle-letterbox-sensor-v2-letterbox-sensor-v2-layout
The project archive carries the board, its project file and the upstream licence. The archive is zstd-compressed (tar.zst).
33Placed parts
50Nets
2Copper layers
116 × 40 mmBoard size
yesRouted
KiCad 7File format
Bill of materials
33 distinct parts
19 resolve to something in the catalog — click through to the footprint.
| Ref | Value | Footprint | Qty |
|---|---|---|---|
| AE1 | Antenna | Letterbox_Sensor:TI-DN024-SL-SHORT | |
| C1 | 2.7pF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | |
| C2 | 470u | Capacitor_Tantalum_SMD:CP_EIA-7343-30_AVX-N_Pad2.25x2.55mm_HandSolder | |
| C3 | 470u | Capacitor_Tantalum_SMD:CP_EIA-7343-30_AVX-N_Pad2.25x2.55mm_HandSolder | |
| C4 | 100n | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | |
| C5 | 10u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | |
| C7 | 100n | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | |
| D1 | HSDL-9100 | Letterbox_Sensor:Broadcom-HSDL-9100-021-0-0-MFG | |
| D2 | LED | Letterbox_Sensor:LED_PLCC_2835_Handsoldering | |
| D3 | HSDL-9100 | Letterbox_Sensor:Broadcom-HSDL-9100-021-0-0-MFG | |
| D4 | LED | Letterbox_Sensor:LED_PLCC_2835_Handsoldering | |
| DRAGON2 | dragon-logo | Letterbox_Sensor:Dragon | |
| FB1 | FB | Inductor_SMD:L_0805_2012Metric_Pad1.05x1.20mm_HandSolder | |
| J1 | 2032 | Letterbox_Sensor:BatteryHolder_MPD_BU2032SM-FH_2032 | |
| J2 | USB_C_Receptacle | Letterbox_Sensor:USB_C_Receptacle_RAHUC31AUTR | |
| JP1 | USB | Button_Switch_SMD:SW_DIP_SPSTx01_Slide_Omron_A6S-110x_W8.9mm_P2.54mm | |
| L1 | 1.8nH | Inductor_SMD:L_0603_1608Metric | |
| R1 | 33 | Resistor_SMD:R_1206_3216Metric | |
| R10 | 5.1k | Resistor_SMD:R_1206_3216Metric | |
| R11 | 5M | Resistor_SMD:R_1206_3216Metric | |
| R12 | 22 | Resistor_SMD:R_1206_3216Metric | |
| R13 | 22 | Resistor_SMD:R_1206_3216Metric | |
| R14 | 5M | Resistor_SMD:R_1206_3216Metric | |
| R2 | 220 | Resistor_SMD:R_1206_3216Metric | |
| R4 | 1M | Resistor_SMD:R_1206_3216Metric | |
| R5 | 33 | Resistor_SMD:R_1206_3216Metric | |
| R7 | 1M | Resistor_SMD:R_1206_3216Metric | |
| R8 | 220 | Resistor_SMD:R_1206_3216Metric | |
| R9 | 5.1k | Resistor_SMD:R_1206_3216Metric | |
| SW1 | Boot | Letterbox_Sensor:SW_Push_SPST_NO_Alps_SKRK | |
| SW2 | Reset | Letterbox_Sensor:SW_Push_SPST_NO_Alps_SKRK | |
| U2 | RAK3172 | Letterbox_Sensor:RAK3172 | |
| U3 | FT230XSR | Letterbox_Sensor:FTDI-SSOP-16-0-0-IPC_A |
Provenance
- Repository
- hierle/letterbox-sensor-v2 ↗
- Commit
- unknown
- Licence
- CC-BY-4.0
How it is used
Trace's agent reads this design as context — what parts a board like this carries, how they are grouped across sheets, what a plausible layer stack and board size look like for the job. It is not copied. The licence above is permissive, and it, the repository and the commit are recorded so the origin of anything derived from it is always answerable.