4 layers30 × 55 mm
2 layers67 × 55 mm
Balance
jspspike/balance- Size
- 67 × 55 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 47
- Nets
- 46
- Pads
- 189
- Tracks, vias
- 332, 18
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 25 Oct 2019
- Updated
- 17 Dec 2019
Overview
Balance is an open-source printed circuit board by jspspike, from the jspspike/balance repository on GitHub, published under the AGPL-3.0 licence. It is a 2-layer board of 67 × 55 mm with 47 parts on 46 nets, routed with 332 tracks and 18 vias.
It is built around the TM4C123GH6PMI, MMBT3904 and CMT-8530S-SMT-TR. Its parts include 14 capacitors, 8 resistors, 7 connectors, 3 diodes and 3 transistors.
Main components
3
TM4C123GH6PMI
LQFP-64(10x10)-40℃~+85℃ 1.08V~3.63V 12bit 256KB 2KB 32 Bit 32KB 43 80MHz ARM Cortex-M4F Built-in FLASH LQFP-64(10x10) Microcontrollers (MCU/MPU/SOC) ROHSTexas InstrumentsMicrocontrollers (MCU/MPU/SOC)
MMBT3904
SOT-23-55℃~+150℃ 1 NPN 100 100nA 200mA 200mW 300MHz 300mV 40V 6V NPN SOT-23 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)
CMT-8530S-SMT-TR
SMD,8.5x8.5mm-30℃~+75℃ 2.73kHz 3.5mm 3.6V 3V~5V 8.5mm 8.5mm 87dB 90mA Electromagnetic Passive (Externally Driven) SMD SMD,8.5x8.5mm Buzzers ROHSCUIBuzzers
Parts
47| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | .1uF | Capacitor_SMD:C_0805_2012Metric | C1, C2, C3, C4, C7 |
| 3 | 100ohm | Resistor_SMD:R_0805_2012Metric | R4, R5, R8 |
| 3 | 10uF | Capacitor_SMD:C_0805_2012Metric | C12, C13, C14 |
| 3 | 3.3uF | Capacitor_SMD:C_0805_2012Metric | C5, C6, C8 |
| 3 | MMBT3904 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3 |
| 2 | 10pF | Capacitor_SMD:C_0805_2012Metric | C9, C10 |
| 2 | 68ohm | Resistor_SMD:R_0805_2012Metric | R2, R7 |
| 2 | Motor_Servo | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | M1, M2 |
| 1 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C11 |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric | R3 |
| 1 | 16MHz | Crystal:Crystal_SMD_5032-2Pin_5.0x3.2mm | Y1 |
| 1 | 1Mohm | Resistor_SMD:R_0805_2012Metric | R1 |
| 1 | 50ohm | Resistor_SMD:R_0805_2012Metric | R6 |
| 1 | Barrel_Jack_Switch | Connector_BarrelJack:BarrelJack_CUI_PJ-102AH_Horizontal | J4 |
| 1 | CMT-8530S-SMT | CMT-8530S-SMT:CUI_CMT-8530S-SMT | Beep |
| 1 | Conn_01x04_Male | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J3 |
| 1 | Conn_02x03_Top_Bottom | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J6 |
| 1 | Conn_02x05 | Connector_PinHeader_2.54mm:PinHeader_2x05_P2.54mm_Vertical | J7 |
| 1 | JTAG | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J2 |
| 1 | LED_BLUE | LED_SMD:LED_0603_1608Metric_Castellated | D2 |
| 1 | LED_GREEN | LED_SMD:LED_0603_1608Metric_Castellated | D1 |
| 1 | LED_RED | LED_SMD:LED_0603_1608Metric_Castellated | D3 |
| 1 | LM2937xS | Package_TO_SOT_SMD:TO-263-3_TabPin2 | U2 |
| 1 | LOGO | pineapple:pineapple | G*** |
| 1 | Resistive_Touch | Connector_FFC-FPC:TE_84952-4_1x04-1MP_P1.0mm_Horizontal | J1 |
| 1 | SW_Push | 2-1437565-8:SW_SMD_2-1437565-8_4_4.50_6.00_6.00_5.00 | SW1 |
| 1 | TM4C123GH6PMI | TM4C123GH6PMI:QFP50P1200X1200X160-64N | U1 |
| 1 | UART (Bluetooth) | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J5 |
The 43 most common of 47 parts.
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Questions
How big is the Balance PCB?
It measures 67 × 55 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Balance use?
47 parts, built around the TM4C123GH6PMI, MMBT3904 and CMT-8530S-SMT-TR. 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 Balance KiCad files?
From the jspspike/balance repository on GitHub, at the commit this page was made from: the board is pcb/balance.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Balance design in my own project?
Its repository publishes it under the AGPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).