Ai08-devboard
About the Ai08-devboard PCB
Ai08-devboard is an open source PCB design by Sirawit7205, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 80 × 70 mm, with 65 components from 19 distinct parts.
Other key parts include the L78L05_TO92, AI08, 74HC11, 74AHC1G04 and 74HC138. By type, the board carries 22 resistors, 14 diodes, 10 capacitors, 6 ICs, 4 connectors and 1 jumper.
It belongs with the dev boards & breakouts designs in this gallery.
From the project
Dev board for AI08 8-Ch Capacitive Touch Controller
This is an open-source KiCAD design files for a development for SAM&WING AI08 8-Channel Capacitive Touch Controller IC.
This devboard provides full flexibility for testing various configurations of the chip and surrounding circuits.
- AI08 Functions - Eight 12mm rounded-rectangle touch buttons. (No shield) - CSEL pad for sensitivity settings. - Multiple Outputs - 4-bit BCD output (with indicator LEDs) - 8-bit decoded output (with indicator LEDs) - No Detection and Sleep Calibration indicator LEDs - 74HC138 is interchangable for 74HC238 for active-high decoded output. - Built-In LDO -…
Main components on the Ai08-devboard
Ai08-devboard bill of materials (BOM)
65 components, 19 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | L78L05_TO92 | TO-92 | U1 |
| 1 | AI08 | SOIC-16_3.9x9.9mm_P1.27mm | U2 |
| 1 | 74HC11 | SOIC-14_3.9x8.7mm_P1.27mm | U3 |
| 1 | 74AHC1G04 | SOT-23-5 | U4 |
| 1 | 74HC138 | SOIC-16_3.9x9.9mm_P1.27mm | U5 |
| 1 | L78L05_SOT89 | SOT-89-3 | U6 |
| 1 | POWER | PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | DEC_OUT | PinHeader_1x08_P2.54mm_Vertical | J2 |
| 1 | BCD_OUT | PinHeader_1x04_P2.54mm_Vertical | J3 |
| 1 | STAT_OUT | PinHeader_1x02_P2.54mm_Vertical | J4 |
| 8 | Button | CAPTOUCH_12mm | H1, H2, H3, H4, H5, H6, H7, H8 |
| 1 | SELECT | SolderJumper-3_P1.3mm_Bridged12_Pad1.0x1.5mm | JP1 |
| 14 | LED | LED_0603_1608Metric | D1, D2, D3, D4, D5, D6, D7, D8 +6 |
| 4 | 100nF | C_0603_1608Metric | C1, C2, C4, C5 |
| 2 | 1uF | C_0805_2012Metric | C3, C6 |
| 1 | TBD | C_0603_1608Metric | C7 |
| 1 | 4n7F | C_0603_1608Metric | C8 |
| 2 | TBD | C_0805_2012Metric | C9, C10 |
| 22 | 1K | R_0603_1608Metric | R1, R2, R3, R4, R5, R6, R7, R8 +14 |
Ai08-devboard design files
The KiCad project lives in the Sirawit7205/ai08-devboard repository on GitHub; these links point at the commit this page was built from.
- LayoutAI08_devboard.kicad_pcb
- SchematicAI08_devboard.kicad_sch
Ai08-devboard: common questions
How big is the Ai08-devboard PCB?
The Ai08-devboard measures 80 × 70 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Ai08-devboard?
65 components, from 19 distinct parts. The full bill of materials is listed on this page.
Where can I download the Ai08-devboard design files?
From the Sirawit7205/ai08-devboard repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Ai08-devboard design in my own project?
Yes, under the terms of its CERN-OHL-S-2.0 license, which Sirawit7205 chose for the repository.
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