4 layers88 × 50 mm
2 layers105 × 63 mm
BBMini32
TheUncleKai/bbsensorBBQ Sensor
- Size
- 105 × 63 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 51
- Nets
- 73
- Pads
- 212
- Tracks, vias
- 246, 16
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 27 Aug 2019
- Updated
- 7 Mar 2020
Overview
BBMini32 is an open-source printed circuit board by TheUncleKai, from the TheUncleKai/bbsensor repository on GitHub, published under the Apache-2.0 licence. It is a 2-layer board of 105 × 63 mm with 51 parts on 73 nets, routed with 246 tracks and 16 vias.
It is built around the LM2672M-5.0, MCP3208-BI/P and 74HC595, with the S8050 among its other parts. Its parts include 9 resistors, 6 capacitors, 5 ICs, 3 diodes and 3 switches. It belongs with the sensors and measurement boards and the ESP32 boards of this library.
Main components
4
LM2672M-5.0
SOIC-8-40℃~+125℃@(TJ) 1 1A 260kHz 5V 6.5V~40V Buck Buck Built-in Fixed No SOIC-8 DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
MCP3208-BI/P
PDIP-16-40℃~+85℃ 0.5LSB 100kHz 12 1LSB 1MHz、2MHz 2.7V~5.5V 500nA 8 External External Multiplexers、Bipolar input Not supported SAR SPI Yes PDIP-16 Analog to Digital Converters (ADC) ROHSMicrochip TechnologyAnalog To Digital Converters (ADC)
74HC595
SOP-16-40℃~+85℃ 1 100ns@5V,50pF 10MHz 2V~6V 74HC 8 Serial-to-Serial or Parallel Tri-State SOP-16 Shift Registers ROHSGRShift Registers
S8050
SOT-23-55℃~+150℃ 1 NPN 100MHz 100nA 120 25V 300mW 500mA 5V 600mV NPN SOT-23 Bipolar (BJT) ROHShongjiachengBipolar (BJT)
README
README.mdbbsensor
BBQ Sensor
The 8 is a simple temperature monitor intended for BBQ/Smoker. It has 8 inlets that can be used with PTC or Pt100 probes. The BBSensor is run by a ESP8266 Microcontroller (NodeMCU Lua Lolin V3 Modul). The temperature can be delivered either via the display or network.
Front view
Back view
Top view
Parts
51| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | AudioJack3 | Lumberg:LUMBERG_1501_05 | TH1, TH2, TH3, TH4, TH5, TH6, TH7, TH8 |
| 8 | TestPoint | TestPoint:TestPoint_Pad_D1.5mm | TS1, TS2, TS3, TS4, TS5, TS6, TS7, TS8 |
| 4 | 2k2 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R4, R5, R6, R9 |
| 4 | MountingHole_3.2mm_M3 | MountingHole:MountingHole_3.2mm_M3 | ~, ~, ~, ~ |
| 3 | 100n | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C2, C5, C6 |
| 2 | 220 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R1, R7 |
| 2 | SW_Push_Dual | NAMAE:NAMAE_JTP-1130P | SW2, SW3 |
| 1 | 100u | Capacitor_SMD:CP_Elec_8x10 | C1 |
| 1 | 10n | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C3 |
| 1 | 140 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R2 |
| 1 | 1N5822 | Diode_SMD:D_SOD-323_HandSoldering | D1 |
| 1 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R3 |
| 1 | 2k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R8 |
| 1 | 47u | Inductor_SMD:L_TDK_SLF7032 | L1 |
| 1 | 68u | Capacitor_SMD:CP_Elec_6.3x5.9 | C4 |
| 1 | 74HC595 | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U3 |
| 1 | ESP-32_NodeMCU | Collection:ESP-32_NodeMCU | U2 |
| 1 | Fuse | Schurter:Fuse_holder_20x5_22.5 | F1 |
| 1 | GREEN | LED_THT:LED_D3.0mm | D3 |
| 1 | HD44780 | Collection:HD44780_LCD_2x16 | U4 |
| 1 | LM2672M-5.0 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | MCP3208 | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U5 |
| 1 | POWER | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | POWER | LED_THT:LED_D3.0mm | D2 |
| 1 | S8050 | Package_TO_SOT_THT:TO-92_Inline | Q1 |
| 1 | SW_SPDT | Button_Switch_THT:SW_E-Switch_EG1224_SPDT_Angled | SW1 |
| 1 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | TP1 |
Questions
How big is the BBMini32 PCB?
It measures 105 × 63 mm and has 2 copper layers, 1.6 mm thick.
What parts does the BBMini32 use?
51 parts, built around the LM2672M-5.0, MCP3208-BI/P, 74HC595 and S8050. 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 BBMini32 KiCad files?
From the TheUncleKai/bbsensor repository on GitHub, at the commit this page was made from: the board is hardware/Mini32/pcb/BBMini32.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the BBMini32 design in my own project?
Its repository publishes it under the Apache-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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