4 layers50 × 50 mm
4 layers100 × 100 mm
Balancing cam panel
NEOgHacking/Balancing_cam1- Size
- 100 × 100 mm
- Copper layers
- 4
- Thickness
- 1.57 mm
- Parts
- 580
- Nets
- 127
- Pads
- 2,028
- Tracks, vias
- 2,956, 848
- Pours
- 100
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 8 Jul 2026
- Updated
- 12 Sep 2026
Overview
Balancing cam panel is an open-source printed circuit board by NEOgHacking, from the NEOgHacking/Balancing_cam repository on GitHub. It is a 4-layer board of 100 × 100 mm with 580 parts on 127 nets, routed with 2,956 tracks and 848 vias.
It is built around the ESP32-S3-MINI-1-N8, TPS62933DRL and TMC2209-LA, with the LSM6DS3, USBLC6-2P6 and BLM18KG121TN1D among its other parts. Its parts include 184 capacitors, 100 resistors, 56 inductors, 36 diodes and 36 connectors. It belongs with the ESP32 boards of this library.
Main components
11
ESP32-S3-MINI-1-N8
SMD-104.5dBm -40℃~+85℃ 2.4GHz 20.5dBm 330mA 3V~3.6V 97mA Bluetooth5.0 ESP32-S3FN8 Chip On-board PCB Antenna UART、SPI、I2C、I2S、USB SMD WiFi Modules ROHSEspressif SystemsWiFi Modules
TPS62933DRL
SOT-583-40℃~+150℃@(TJ) 1 12uA 2.2MHz 3.8V~30V 3A 800mV~22V Adjustable Buck Buck Built-in Yes SOT-583 DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
TMC2209-LA
QFN-28-EP_5x5QFN-28-EP(5x5) SMT ROHSAnalog DevicesUncategorised
LSM6DS3
LGA-14(2.5x3)-40℃~+85℃ 1.71V~3.6V 8KB Accelerometer Gyroscope SPI、I2C X,Y,Z X,Y,Z ±16g ±2000dps LGA-14(2.5x3) Accelerometers ROHSSTMicroelectronicsAccelerometers
USBLC6-2P6
SOT-666-6-40℃~+125℃ 150nA 17V 2 3.5pF 5.25V 5A@8/20us 6V ESD IEC 61000-4-2 Unidirectional SOT-666-6 ESD and Surge Protection (TVS/ESD) ROHSSTMicroelectronicsESD And Surge Protection (TVS/ESD)
BLM18KG121TN1D
06031 120Ω@100MHz 30mΩ 3A ±25% 0603 Ferrite Beads ROHSMurataFerrite Beads
BAV99W
SOT-3231 Pair Series Connection 1.25V@150mA 100V 150mA 200mW 4A 4ns 500nA@80V SOT-323-3 Switching Diodes ROHSNexperiaSwitching Diodes
B3U-1000P
SMD,3x2.5mm-25℃~+70℃ 1.53N 1.6mm 12V 2.5mm 3mm 50mA Round Button SMD(SMT) Tab SPST Surface Mount,Vertical SMD,3x2.5mm Tactile Switches ROHSOmronTactile Switches
WS2812B-4020
SMD,4x2mm-20℃~+70℃ 0.6mA 1.7mm 2mm 3.7V~5.3V 3.98mm 800Kbit/s B:465nm~475nm、R:620nm~625nm、G:515nm~525nm Built-in power-on reset circuit、Built-in power-on reset circuit、Integrated intelligent reverse connection protection function G:600mcd~1000mcd、B:200mcd~300mcd、R:300mcd~500mcd SMD,4x2mm RGB LEDs(Built-in IC) ROHSWorldsemiRGB LEDs(Built-In IC)
BC817
SOT-231 NPN 100nA 150MHz 300mW 40 45V 500mA 5V 700mV NPN SOT-23 Bipolar (BJT) ROHSShikuesBipolar (BJT)
DSK24L
SOD-123FL-55℃~+150℃ 1mA@40V 2A 400mV@2A 40V 50A Independent SOD-123FL Schottky Diodes ROHSLGESchottky Diodes
README
README.md
Balancing_cam
This is a side project to improve on the with a new smaller esd protected pcb to prevent failures on the board, also to make the board smaller and make room for a second battery pack.
PCB
Parts
580| Qty | Value | Footprint | References |
|---|---|---|---|
| 96 | 100n | Capacitor_SMD:C_0402_1005Metric | C1, C1, C1, C1, C10, C10, C10, C10, C11, C11, C11, C11, C12, C12, C12, C12 +80 |
| 88 | TestPoint | TestPoint:TestPoint_Pad_D1.5mm | TP1, TP1, TP1, TP1, TP10, TP10, TP10, TP10, TP11, TP11, TP11, TP11, TP12, TP12, TP12, TP12 +72 |
| 48 | BLM18KG121TN1D | Inductor_SMD:L_0603_1608Metric | L10, L10, L10, L10, L11, L11, L11, L11, L12, L12, L12, L12, L13, L13, L13, L13 +32 |
| 32 | 1n | Capacitor_SMD:C_0603_1608Metric | C39, C39, C39, C39, C40, C40, C40, C40, C41, C41, C41, C41, C42, C42, C42, C42 +16 |
| 24 | 100R | Resistor_SMD:R_0603_1608Metric | R16, R16, R16, R16, R17, R17, R17, R17, R22, R22, R22, R22, R23, R23, R23, R23 +8 |
| 24 | BAV99W | Package_TO_SOT_SMD:SOT-23 | D2, D2, D2, D2, D3, D3, D3, D3, D6, D6, D6, D6, D7, D7, D7, D7 +8 |
| 20 | 10k | Resistor_SMD:R_0402_1005Metric | R6, R6, R6, R6, R13, R13, R13, R13, R14, R14, R14, R14, R20, R20, R20, R20 +4 |
| 16 | 100m | Resistor_SMD:R_1206_3216Metric | R1, R1, R1, R1, R2, R2, R2, R2, R3, R3, R3, R3, R4, R4, R4, R4 |
| 16 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1, JP1, JP1, JP1, JP2, JP2, JP2, JP2, JP3, JP3, JP3, JP3, JP4, JP4, JP4, JP4 |
| 12 | 0R | Resistor_SMD:R_0402_1005Metric | R15, R15, R15, R15, R18, R18, R18, R18, R19, R19, R19, R19 |
| 12 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_Pad | H1, H1, H1, H1, H2, H2, H2, H2, H3, H3, H3, H3 |
| 8 | 100μ | Capacitor_SMD:CP_Elec_6.3x5.4 | C5, C5, C5, C5, C14, C14, C14, C14 |
| 8 | 10u | Capacitor_SMD:C_0603_1608Metric | C20, C20, C20, C20, C25, C25, C25, C25 |
| 8 | 1k | Resistor_SMD:R_0402_1005Metric | R12, R12, R12, R12, R21, R21, R21, R21 |
| 8 | 22n | Capacitor_SMD:C_0402_1005Metric | C7, C7, C7, C7, C16, C16, C16, C16 |
| 8 | 2u2 | Capacitor_SMD:C_0603_1608Metric | C6, C6, C6, C6, C15, C15, C15, C15 |
| 8 | 2u2 | Inductor_SMD:L_1210_3225Metric | L1, L1, L1, L1, L2, L2, L2, L2 |
| 8 | 33n | Capacitor_SMD:C_0402_1005Metric | C23, C23, C23, C23, C28, C28, C28, C28 |
| 8 | 5.1k | Resistor_SMD:R_0603_1608Metric | R10, R10, R10, R10, R11, R11, R11, R11 |
| 8 | B3U-1000P | Button_Switch_SMD:SW_SPST_B3U-1000P | SW2, SW2, SW2, SW2, SW3, SW3, SW3, SW3 |
| 8 | Conn_01x04 | Connector_JST:JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J6, J6, J6, J6, J7, J7, J7, J7 |
| 8 | Conn_01x04 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J5, J5, J5, J5, J9, J9, J9, J9 |
| 8 | Fuse | Fuse:Fuseholder_Littelfuse_Nano2_154x | F1, F1, F1, F1, F2, F2, F2, F2 |
| 8 | JST_PH | footprints:JST_PH_S2B-PH-SM4-TB_1x02-1MP_P2.00mm_Horizontal | J1, J1, J1, J1, J2, J2, J2, J2 |
| 8 | TMC2209-LA | Package_DFN_QFN:VQFN-28-1EP_5x5mm_P0.5mm_EP3.7x3.7mm_ThermalVias | U1, U1, U1, U1, U2, U2, U2, U2 |
| 8 | TPS62933 | Package_TO_SOT_SMD:SOT-583-8 | U3, U3, U3, U3, U4, U4, U4, U4 |
| 8 | WS2812B-4020 | footprints:WS2812B-4020 | D4, D4, D4, D4, D5, D5, D5, D5 |
| 4 | 100u | Capacitor_SMD:C_1206_3216Metric | C27, C27, C27, C27 |
| 4 | 14k7 | Resistor_SMD:R_0402_1005Metric | R7, R7, R7, R7 |
| 4 | 1u | Capacitor_SMD:C_0402_1005Metric | C36, C36, C36, C36 |
| 4 | 22u | Capacitor_SMD:C_0603_1608Metric | C33, C33, C33, C33 |
| 4 | 30k9 | Resistor_SMD:R_0402_1005Metric | R8, R8, R8, R8 |
| 4 | 47u | Capacitor_SMD:C_0805_2012Metric | C22, C22, C22, C22 |
| 4 | 52k3 | Resistor_SMD:R_0402_1005Metric | R5, R5, R5, R5 |
| 4 | BC817 | Package_TO_SOT_SMD:SOT-23 | Q1, Q1, Q1, Q1 |
| 4 | Conn_01x03 | Connector_JST:JST_GH_BM03B-GHS-TBT_1x03-1MP_P1.25mm_Vertical | J8, J8, J8, J8 |
| 4 | DSK24L | Diode_SMD:D_SOD-123F | D1, D1, D1, D1 |
| 4 | ESP32-S3-MINI-1 | RF_Module:ESP32-S2-MINI-1 | U7, U7, U7, U7 |
| 4 | JST_XH | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J4, J4, J4, J4 |
| 4 | LSM6DS3 | Package_LGA:LGA-14_3x2.5mm_P0.5mm_LayoutBorder3x4y | U6, U6, U6, U6 |
| 4 | SW_SPDT | footprints:SS12D10G5 | SW1, SW1, SW1, SW1 |
| 4 | USBLC6-2P6 | Package_TO_SOT_SMD:SOT-666 | U5, U5, U5, U5 |
| 4 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J3, J3, J3, J3 |
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Questions
How big is the Balancing cam panel PCB?
It measures 100 × 100 mm and has 4 copper layers, 1.57 mm thick.
What parts does the Balancing cam panel use?
580 parts, built around the ESP32-S3-MINI-1-N8, TPS62933DRL, TMC2209-LA and LSM6DS3. 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 Balancing cam panel KiCad files?
From the NEOgHacking/Balancing_cam repository on GitHub, at the commit this page was made from: the board is PCB/Balancing_cam/Balancing_cam_panel.kicad_pcb and its schematic PCB/Balancing_cam/Balancing_cam.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Balancing cam panel design in my own project?
Its repository states no licence, so its author keeps all rights: ask NEOgHacking before reusing the design.