mattvenn/kicad14The documentation for this workshop mostly consists of youtube screencasts. The screencasts are deliberately fast, if you need them slower then click the video's settings button and choose a slower speed.
Bbb adc is an open-source printed circuit board by mattvenn, from the mattvenn/kicad repository on GitHub. It is a 2-layer board of 65 × 78 mm with 100 parts on 33 nets, routed with 228 tracks and 5 vias.
It is built around the REF5050ID. Its parts include 7 capacitors, 3 connectors, 2 resistors, 1 IC and 1 diode.
Shortlink to this page: ven.nz/kicad-ws
The documentation for this workshop mostly consists of youtube screencasts. The screencasts are deliberately fast, if you need them slower then click the video's settings button and choose a slower speed.
You are advised to watch the screencasts all the way through before starting, then reference them as needed.
Each screencast has a clickable table of contents. Click the video's 'show more' link to expose it.
The screencasts show the creation of a simple LED board as a way of showing the process. Don't just follow along - you will be making a breadboard power supply to supply either 3.3v or 5v.
Watch the schematic creation screencast
Your first task is to produce the schematic below. If you want a 3.3v output use part AP1117D33. If you want 5v then use LM7805CT.
The barrel jack's PCB footprint will not be fabricated properly because OSHPark's fab don't allow thin slots. You'll use a different footprint that uses large holes instead.
Download the barrel jack's modified footprint library
Footprint libraries are a directory containing 1 or more footprint files. The directory name ends in .pretty. The footprint files end in .kicad_mod.
Watch the PCB creation screencast
Example layout of the PCB:
Watch the fabrication screencast
Each of these layers is exported as a separate file called a gerber.
You also need a drill file that specifies where all the holes are.
Zip all the files together and then upload to OSHPark.com
| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | TEST | Measurement_Points:Test_Point | !cs1, clk1, gnd1, sdo1, sdo2 |
| 3 | 1u | Capacitors_SMD:C_1206_HandSoldering | C1, C2, C5 |
| 3 | CONN_01X02 | Pin_Headers:Pin_Header_Straight_1x02 | adc1-in1, adc2-in1, P2 |
| 2 | 10n | Capacitors_SMD:C_1206_HandSoldering | C3, C4 |
| 2 | CONN_01X08 | Pin_Headers:Pin_Header_Straight_1x08 | ard0, gpio1 |
| 2 | CONN_02X06 | Pin_Headers:Pin_Header_Straight_2x06 | pmod1, pmod2 |
| 2 | ads7883 | TO_SOT_Packages_SMD:SOT-23-6 | adc1, adc2 |
| 1 | 100R | Resistors_SMD:R_1206_HandSoldering | R1 |
| 1 | 1nf | Capacitors_SMD:C_1206_HandSoldering | C6 |
| 1 | 22u | Capacitors_SMD:c_elec_6.3x7.7 | c7 |
| 1 | CONN_01X03 | Pin_Headers:Pin_Header_Straight_1x03 | P1 |
| 1 | CONN_02X04 | Pin_Headers:Pin_Header_Straight_2x04 | P9 |
| 1 | CONN_02X23 | Pin_Headers:Pin_Header_Straight_2x23 | P8 |
| 1 | LED | LEDs:LED-1206 | D1 |
| 1 | R | Resistors_SMD:R_1206_HandSoldering | R2 |
| 1 | ref5050 | Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm | U1 |
The 28 most common of 100 parts.
mattvenn/kicad
The documentation for this workshop mostly consists of youtube screencasts. The screencasts are deliberately fast, if you need them slower then click the video's settings button and choose a slower speed.
mattvenn/kicad
The documentation for this workshop mostly consists of youtube screencasts. The screencasts are deliberately fast, if you need them slower then click the video's settings button and choose a slower speed.
mattvenn/kicad
The documentation for this workshop mostly consists of youtube screencasts. The screencasts are deliberately fast, if you need them slower then click the video's settings button and choose a slower speed.
mattvenn/kicad
The documentation for this workshop mostly consists of youtube screencasts. The screencasts are deliberately fast, if you need them slower then click the video's settings button and choose a slower speed.
mattvenn/kicad
The documentation for this workshop mostly consists of youtube screencasts. The screencasts are deliberately fast, if you need them slower then click the video's settings button and choose a slower speed.
mattvenn/kicad
The documentation for this workshop mostly consists of youtube screencasts. The screencasts are deliberately fast, if you need them slower then click the video's settings button and choose a slower speed.
mattvenn/kicad
The documentation for this workshop mostly consists of youtube screencasts. The screencasts are deliberately fast, if you need them slower then click the video's settings button and choose a slower speed.
mattvenn/kicad
The documentation for this workshop mostly consists of youtube screencasts. The screencasts are deliberately fast, if you need them slower then click the video's settings button and choose a slower speed.
mattvenn/kicad
The documentation for this workshop mostly consists of youtube screencasts. The screencasts are deliberately fast, if you need them slower then click the video's settings button and choose a slower speed.
mattvenn/kicad
The documentation for this workshop mostly consists of youtube screencasts. The screencasts are deliberately fast, if you need them slower then click the video's settings button and choose a slower speed.
mattvenn/kicad
The documentation for this workshop mostly consists of youtube screencasts. The screencasts are deliberately fast, if you need them slower then click the video's settings button and choose a slower speed.
mattvenn/kicad
The documentation for this workshop mostly consists of youtube screencasts. The screencasts are deliberately fast, if you need them slower then click the video's settings button and choose a slower speed.
lnls-sirius/SPIxCONV
This project consists of an 18-bit analog input (ADC) and output (DAC) within a range of 20 V (± 10 V) and 32 digital pins that can be either as inputs or outputs.
bc-kim/PCB_KiCAD
Tips Footprint of the resisotor and capacitor should be assigned aforetime because assigning those are comfusing when lots of reisistor and capacitors are used. 3. Reference: https://wikidocs.net/103412
ojz/prompted-circuit-boards
Prompt-driven design of Eurorack modules with KiCad 10
It measures 65 × 78 mm and has 2 copper layers, 1.6 mm thick.
100 parts, built around the REF5050ID. 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.
From the mattvenn/kicad repository on GitHub, at the commit this page was made from: the board is bbb-adc/bbb-adc.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask mattvenn before reusing the design.
