Order
You can order your PCBs from various vendors. I have only used JLCPCB. To order the module, download the latest release of the main PCB and front panel zip files from the GitHub repository.
www.jlcpcb.com
Begin with the front panel. Drag the file into JLCPCB's interface. Keep all settings as default, just make the following changes: select LeadFree HASL, choose a white pcb, and specify a location for the version number. This version number can be aligned with the module's prepared serial text, which helps save costs. Add the front panel to your cart.
Next, repeat the process for the main PCB. However, this time select a black pcb color. If you want the SMD parts pre-soldered, choose the PCBA (SMD assembly) option. This is highly recommended for convenience.
red dots show the correct orientation of the components
If PCBA is selected, upload the cpl.csv and bom.csv files. These files provide placement instructions for each part. Ensure the orientation of components is correct.
| Comment | Designator | Footprint | JLCPCB Part # |
|---|---|---|---|
| C20pF | C5,C6 | C_0603_1608Metric | C1648 |
| R33k | R10,R11,R12,R16,R17,R18 | R_0805_2012Metric | C17633 |
| Conn_02x05_Odd_Even | J1 | PinHeader_2x05_P2.54mm_Vertical | C492422 |
| R470 | R13,R14,R15,R2,R21,R4,R6,R7,R8,R9 | R_0805_2012Metric | C17710 |
| R3K3 | R19,R20 | R_0805_2012Metric | C26010 |
| LED | D2 | LED_0805_2012Metric | C84256 |
| Conn_02x03_Odd_Even | J10 | PinHeader_2x03_P2.54mm_Vertical | C492420 |
| R100k | R3,R5 | R_0805_2012Metric | C149504 |
| R10K | R22 | R_0805_2012Metric | C17414 |
| BAT54S | D12,D13,D14,D3,D4,D6,D7,D8 | SOT-23 | C916425 |
| AMS1117-5.0 | U2 | SOT-223-3_TabPin2 | C917153 |
| C10nF | C11,C12 | C_0805_2012Metric | C1710 |
| R1K5 | R1 | R_0805_2012Metric | C4310 |
| C220pF | C10 | C_0805_2012Metric | C107145 |
| 1N5819WS | D1 | D_SOD-323 | C191023 |
| Crystal_GND24 | Y1 | Crystal_SMD_3225-4Pin_3.2x2.5mm | C13738 |
| ATmega328P-AU | U1 | TQFP-32_7x7mm_P0.8mm | C14877 |
| C10uf | C8,C9 | CP_Elec_5x5.4 | C72486 |
| C100nF | C1,C2,C3,C4,C7 | C_0805_2012Metric | C49678 |
Here is a list of components which are assembled by JLCPCB. Note that a complete BOM is in the next step. These are only the small pre soldered smd components. Once verified, proceed to checkout and order the frontpanel and the main logic pcb. Wait for the delivery and prepare for building it in the next step.