4 layers82 × 55 mm
Spark
ratmuds/spark
The PCB files for this project. The gerber and other PCBA files are in the production folder.
202 parts1
2 layers97.7 × 111.2 mm
CL LFR V2
Aahil78/CL_LFR_V2The Cyber Lnk Line Following Robot V2!!
- Size
- 97.7 × 111.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 49
- Nets
- 88
- Pads
- 275
- Tracks, vias
- 1,169, 183
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 5 May 2025
- Updated
- 8 May 2025
Overview
CL LFR V2 is an open-source printed circuit board by Aahil78, from the Aahil78/CL_LFR_V2 repository on GitHub. It is a 2-layer board of 97.7 × 111.2 mm with 49 parts on 88 nets, routed with 1,169 tracks and 183 vias.
It is built around the 74HC125D, ESP32-S3-WROOM-1-N8 and IP2721, with the LM2596S-3.3, SK6812MINI-E and TYPE-C-31-M-12 among its other parts. Its parts include 16 diodes, 13 resistors, 6 ICs, 4 capacitors and 2 switches. It belongs with the ESP32 boards of this library.
Main components
6
74HC125D
SO-14-40℃~+125℃ 1 11ns@4.5V,50pF 160uA 2V~6V 4 7.8mA 7.8mA 74HC Tri-State Unidirectional SOIC-14 Buffers, Drivers, Receivers, Transceivers ROHSNexperiaBuffers, Drivers, Receivers, Transceivers
ESP32-S3-WROOM-1-N8
SMD,25.5x18mm-40℃~+85℃ -98.2dBm 2.4GHz 20.5dBm 355mA 3V~3.6V 95mA Bluetooth5.0 ESP32-S3 Chip On-board PCB Antenna UART、SPI、I2C、I2S、USB SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
IP2721
TSSOP-16-40℃~+85℃ 1C 3V~25V 5V、15V、20V PD 2.0、PD 3.0 Power Receiver Controller TSSOP-16 USB PD ROHSINJOINICInterface - Specialized
LM2596S-3.3
TO-263-5L-20℃~+70℃ 1 170kHz 2mA 3.3V 3A 4.5V~40V Buck Buck Built-in Fixed No TO-263-5L DC-DC Converters ROHSGRDC-DC Converters
SK6812MINI-E
SMD-40℃~+85℃ 0.6mA 1.78mm 120mcd~240mcd 120° 160mcd~320mcd 1kHz 2.8mm 2000V 3.2mm 3.7V~5.5V 460nm~470nm 515nm~525nm 620nm~625nm 800Kbit/s 815mcd~1275mcd Semi-transparent lens SMD RGB LEDs(Built-in IC) ROHSOPSCO OptoelectronicsRGB LEDs(Built-In IC)
TYPE-C-31-M-12
SMD-30℃~+80℃ 1 10,000 cycles 16P 20V 5A 7.35mm Female Surface Mount, Right Angle Type-C SMD USB Connectors ROHSHRO ElectronicsUSB Connectors
README
README.mdCyber Link's LFR V2
This bot is Cyber Link's Line Follower V2 (Originally named L2-B2)
Features
- The PCB is the chassis
- It's compact
- It uses the ESP32-S3, QTR-8RC, TB6612FNG, IP2721 PD Sink IC, etc.
- It has holes to mount two N20 Micro gear motors
- It is high speed and has pads to add 3x Li-ion batteries or holders.
- And more!
More to come soon!
Parts
49| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | SK6812MINI | Keebio-Parts.pretty-master:SK6812-MINI-E | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15, D16 |
| 8 | 10k | PCM_Resistor_SMD_AKL:R_0805_2012Metric | R6, R7, R8, R9, R10, R11, R12, R13 |
| 3 | 10µF | PCM_Capacitor_SMD_AKL:C_0805_2012Metric | C1, C2, C3 |
| 2 | 10K | PCM_Resistor_SMD_AKL:R_0402_1005Metric | R1, R2 |
| 2 | 22ohm | PCM_Resistor_SMD_AKL:R_0402_1005Metric | R3, R4 |
| 2 | N20 Motor Bracket | Brackets:N20 Bracket | MA, MB |
| 2 | Screw_Terminal_01x02 | Connector_JST:JST_EH_B2B-EH-A_1x02_P2.50mm_Vertical | MA1, MB |
| 1 | 100nF | PCM_Capacitor_SMD_AKL:C_0402_1005Metric | C4 |
| 1 | 330Ω | PCM_Resistor_SMD_AKL:R_0805_2012Metric | R5 |
| 1 | 74HC125 | 74HC125:SOIC-14 | IC1 |
| 1 | BOOT | Button_Switch_SMD:SW_Tactile_SPST_NO_Straight_CK_PTS636Sx25SMTRLFS | SW2 |
| 1 | Bat1 | Battery:BatteryHolder_MPD_BH-18650-PC2 | BT1 |
| 1 | Bat2 | Battery:BatteryHolder_MPD_BH-18650-PC2 | BT2 |
| 1 | Bat3 | Battery:BatteryHolder_MPD_BH-18650-PC2 | BT3 |
| 1 | EN | Button_Switch_SMD:SW_Tactile_SPST_NO_Straight_CK_PTS636Sx25SMTRLFS | SW1 |
| 1 | ESP32-S3-WROOM-1 | RF_Module:ESP32-S3-WROOM-1 | U1 |
| 1 | IP2721 | Package_SO:TSSOP-16_4.4x5mm_P0.65mm | U3 |
| 1 | LM2596S-3.3 | Package_TO_SOT_SMD:TO-263-5_TabPin3 | U2 |
| 1 | QTR-8A | QTR-8X:QTR-8A | U5 |
| 1 | TB6612FNG | Package_SO:SSOP-24_5.3x8.2mm_P0.65mm | U4 |
| 1 | TYPE-C-31-M-12 | TYPE-C-31-M-12:HRO_TYPE-C-31-M-12 | J1 |
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Questions
How big is the CL LFR V2 PCB?
It measures 97.7 × 111.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the CL LFR V2 use?
49 parts, built around the 74HC125D, ESP32-S3-WROOM-1-N8, IP2721 and LM2596S-3.3. 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 CL LFR V2 KiCad files?
From the Aahil78/CL_LFR_V2 repository on GitHub, at the commit this page was made from: the board is CL_LFR_V2.kicad_pcb and its schematic CL_LFR_V2.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the CL LFR V2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask Aahil78 before reusing the design.