2 layers75.8 × 50.6 mm
2 layers119 × 39 mm
SolderingChallenge
RoboticsBrno/RB0011-SolderingChallenge1🛠️ Soldering Challenge
- Size
- 119 × 39 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 40
- Nets
- 35
- Pads
- 140
- Tracks, vias
- 253, 30
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 3 Feb 2023
- Updated
- 8 Jul 2025
Overview
SolderingChallenge is an open-source printed circuit board by RoboticsBrno, from the RoboticsBrno/RB0011-SolderingChallenge repository on GitHub, published under the MIT licence. It is a 2-layer board of 119 × 39 mm with 40 parts on 35 nets, routed with 253 tracks and 30 vias.
Its parts include 15 resistors, 10 capacitors, 5 ICs, 5 diodes and 5 connectors.
README
README.mdRB0011 Soldering Challenge
Solving the SMD soldering challenge is a great way to learn how to solder SMD components.
Soldering Instructions{ .md-button .md-button--primary }
The challenge is to solder all the components on the PCB in the shortest time possible.
Levels
- Level 1 - THT components
- Level 2 - SMD 1206 components
- Level 3 - SMD 0603 components
If you manage to plug in all the components correctly, the LED will flash at about 2 Hz when plugged into the USB port.
!!! info "Attention, L2 has swapped resistor R1 and R2"
Parts
40| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | USB_A | RoboCamp:usb-PCB | J2, J4, J6, J8, J10 |
| 2 | LMC555xMM | Package_SO:VSSOP-8_3.0x3.0mm_P0.65mm | U3, U4 |
| 1 | 100k | Resistor_SMD:R_0402_1005Metric | R12 |
| 1 | 100k | Resistor_SMD:R_0201_0603Metric | R15 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R9 |
| 1 | 100k | Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder | R6 |
| 1 | 100k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R3 |
| 1 | 10k | Resistor_SMD:R_0201_0603Metric | R14 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R8 |
| 1 | 10k | Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder | R5 |
| 1 | 10k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R2 |
| 1 | 10k | Resistor_SMD:R_0402_1005Metric | R11 |
| 1 | 10n | Capacitor_SMD:C_0402_1005Metric | C7 |
| 1 | 10n | Capacitor_THT:C_Disc_D6.0mm_W2.5mm_P5.00mm | C1 |
| 1 | 10n | Capacitor_SMD:C_0201_0603Metric | C9 |
| 1 | 10n | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C5 |
| 1 | 10n | Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder | C3 |
| 1 | 330R | Resistor_SMD:R_1206_3216Metric_Pad1.42x1.75mm_HandSolder | R4 |
| 1 | 330R | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R7 |
| 1 | 330R | Resistor_SMD:R_0402_1005Metric | R10 |
| 1 | 330R | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R1 |
| 1 | 330R | Resistor_SMD:R_0201_0603Metric | R13 |
| 1 | 4.7u | Capacitor_SMD:C_0402_1005Metric | C8 |
| 1 | 4.7u | Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder | C4 |
| 1 | 4.7u | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C6 |
| 1 | 4.7u | Capacitor_SMD:C_0201_0603Metric | C10 |
| 1 | 4.7u | Capacitor_THT:C_Disc_D6.0mm_W2.5mm_P5.00mm | C2 |
| 1 | LED | LED_SMD:LED_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D2 |
| 1 | LED | LED_SMD:LED_0201_0603Metric | D5 |
| 1 | LED | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D3 |
| 1 | LED | LED_THT:LED_D5.0mm | D1 |
| 1 | LED | LED_SMD:LED_0402_1005Metric | D4 |
| 1 | LM555xN | Package_DIP:DIP-8_W7.62mm | U1 |
| 1 | LMC555xM | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | LMC555xTP | Package_BGA:Texas_DSBGA-8_1.43x1.41mm_Layout3x3_P0.5mm | U5 |
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Questions
How big is the SolderingChallenge PCB?
It measures 119 × 39 mm and has 2 copper layers, 1.6 mm thick.
What parts does the SolderingChallenge use?
40 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the SolderingChallenge KiCad files?
From the RoboticsBrno/RB0011-SolderingChallenge repository on GitHub, at the commit this page was made from: the board is docs/hw/hw-v1/solderingChallenge.kicad_pcb and its schematic docs/hw/hw-v2/level1-THT.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the SolderingChallenge design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).