Supercar larson scanner
About the Supercar larson scanner PCB
Supercar larson scanner is an open source PCB design by hkzlab, published on GitHub under the CC-BY-NC-4.0 license. It is a 2-layer board measuring 63.5 × 43.6 mm, with 41 components from 19 distinct parts.
Other key parts include the 74HC283, 74HC574, 74HC154, 74HC86 and NE555D. By type, the board carries 17 diodes, 10 capacitors, 6 ICs, 5 resistors, 1 battery holder and 1 switch.
From the project
A simple SMD Larson Scanner board made out of 74' logic
"Supercar" is the (stupid) italian name for the Knight Rider) TV series. In that series, the iconic car KITT sports a red light going back and forth under the hood. That effect is called "Larson scanner".
This board implements a "Larson scanner" with regulable speed using a 555 timer and a few 74' CMOS logic ICs (two latches, a full adder, a demux and a 4x 2-in xor gate). It's powered by a CR2032 coin cell battery.
Main components on the Supercar larson scanner
Supercar larson scanner bill of materials (BOM)
41 components, 19 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74HC283 | SOIC-16_3.9x9.9mm_P1.27mm | U1 |
| 2 | 74HC574 | SOIC-20W_7.5x12.8mm_P1.27mm | U2, U4 |
| 1 | 74HC154 | SOIC-24W_7.5x15.4mm_P1.27mm | U3 |
| 1 | 74HC86 | SOIC-14_3.9x8.7mm_P1.27mm | U5 |
| 1 | NE555D | SOIC-8_3.9x4.9mm_P1.27mm | U6 |
| 1 | CR2032 | BatteryHolder_Keystone_1060_1x2032 | BT1 |
| 1 | 47K | Potentiometer_Bourns_3314G_Vertical | RV1 |
| 1 | Power | SW_SPDT_CK-JS102011SAQN | SW1 |
| 16 | LED | LED_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D1, D2, D3, D4, D5, D6, D7, D8 +8 |
| 1 | 1N4148W | D_SOD-123 | D17 |
| 7 | 100nF | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1, C3, C4, C5, C6, C7, C8 |
| 1 | 10uF | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C2 |
| 1 | 47uF | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C9 |
| 1 | 4.7uF | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C11 |
| 1 | 2.2K | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1 |
| 1 | 47 | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R17 |
| 1 | 4.7K | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R18 |
| 1 | 100K | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R19 |
| 1 | 10K | R_Array_Convex_4x0612 | RN1 |
Supercar larson scanner design files
The KiCad project lives in the hkzlab/supercar_larson_scanner repository on GitHub; these links point at the commit this page was built from.
- Layoutsupercar.kicad_pcb
- Schematicsupercar.kicad_sch
Supercar larson scanner: common questions
How big is the Supercar larson scanner PCB?
The Supercar larson scanner measures 63.5 × 43.6 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Supercar larson scanner?
41 components, from 19 distinct parts. The full bill of materials is listed on this page.
Where can I download the Supercar larson scanner design files?
From the hkzlab/supercar_larson_scanner repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Supercar larson scanner design in my own project?
It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.