2 layers165 × 135 mm
2 layers80 × 80 mm
Baloon markII
kn1cht/proactive-commons-group2proactive-commons-group2 project
- Size
- 80 × 80 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 31
- Nets
- 70
- Pads
- 136
- Tracks, vias
- 211, 2
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 28 Sep 2019
- Updated
- 17 Feb 2020
Overview
Baloon markII is an open-source printed circuit board by kn1cht, from the kn1cht/proactive-commons-group2 repository on GitHub. It is a 2-layer board of 80 × 80 mm with 31 parts on 70 nets, routed with 211 tracks and 2 vias.
It is built around the LM386, L7805 and 2SC1815. Its parts include 6 ICs, 5 connectors, 4 capacitors, 4 resistors and 4 transistors. It belongs with the ESP32 boards of this library.
Main components
3
LM386
SOP-80.2% 0℃~+70℃ 4V~12V 4mA 50dB 700mWx1@8Ω Analog voltage gain SOP-8 Audio Amplifiers ROHSGcoreAudio Power OpAmps
L7805
TO-220ST0℃~+125℃@(Tj) 1 1.2A 20V 2V@(1A) 42uV 500uA 5V 73dB@(120Hz) Fixed Positive Short Circuit Protection TO-220ST Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSOSENVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
2SC1815
SOT-23-55℃~+150℃ 1 NPN 100nA 130 150mA 200mW 250mV 50V 5V 80MHz NPN SOT-23 Bipolar (BJT) ROHShongjiachengBipolar (BJT)
README
README.mdproactive-commons-group2
proactive-commons-group2 project
Shiftr.io with ESP32
Please refer to ESP32 + Noodl + MQTTでpub/subを試してみる - Qiita.
Parts
31| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 0.1u | Capacitor_THT:C_Disc_D6.0mm_W2.5mm_P5.00mm | C1, C2, C3, C4 |
| 4 | 100 | Potentiometer_THT:Potentiometer_ACP_CA9-H5_Horizontal | RV1, RV2, RV3, RV4 |
| 4 | 2SC1815 | Package_TO_SOT_THT:TO-92 | Q1, Q2, Q3, Q4 |
| 4 | 600 | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1, R2, R3, R4 |
| 4 | Conn_01x04 | Connector_Molex:Molex_SPOX_5267-04A_1x04_P2.50mm_Vertical | J2, J3, J4, J5 |
| 4 | LM386 | Package_DIP:DIP-8_W7.62mm_Socket | U1, U2, U3, U4 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 1 | CONN_01X02 | Connector_Molex:Molex_SPOX_5267-02A_1x02_P2.50mm_Vertical | P3 |
| 1 | ESP32-DEVKITC-32D | lib:MODULE_ESP32-DEVKITC-32D | U5 |
| 1 | L7805 | Package_TO_SOT_THT:TO-220F-3_Horizontal_TabDown | U6 |
Questions
How big is the Baloon markII PCB?
It measures 80 × 80 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Baloon markII use?
31 parts, built around the LM386, L7805 and 2SC1815. 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 Baloon markII KiCad files?
From the kn1cht/proactive-commons-group2 repository on GitHub, at the commit this page was made from: the board is blower-circult/baloon-markII.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Baloon markII design in my own project?
Its repository states no licence, so its author keeps all rights: ask kn1cht before reusing the design.
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