Final
About the Final PCB
Final is an open source ESP32 PCB design by c3n3, published on GitHub. It is a 2-layer board measuring 100 × 100 mm, with 61 components from 34 distinct parts.
Its main chip is the esp32_dev, from the ESP32 family. Other key parts include the SN74LVC2G06DCKR, L2293QTR, PSK-20D-12, SN74AHCT595N and EE2-5NU. By type, the board carries 14 resistors, 13 switches, 7 ICs, 7 diodes, 4 connectors and 3 transistors.
From the project
This is the repo for all the things of senior design
Main components on the Final
Final bill of materials (BOM)
61 components, 34 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SN74LVC2G06DCKR | SOT-363_SC-70-6_Handsoldering | U1 |
| 1 | L2293QTR | L2293QTR | U2 |
| 1 | PSK-20D-12 | PSK-20D | U3 |
| 1 | SN74AHCT595N | SN74HC595N | U4 |
| 1 | esp32_dev | ESP32_dev_board | U5 |
| 2 | EE2-5NU | KEM | U6, U7 |
| 2 | Conn_01x03_Female | encoder_out | A12, A13 |
| 3 | PJE8408_R1_00001 | PJE8408_R1_00001 | Q1, Q2, Q3 |
| 1 | 54-00164 | 54-00164 | J1 |
| 1 | Backup_If_Motor_driver_dont_work | PinHeader_1x06_P2.54mm_Vertical | J2 |
| 1 | AC_IN | AC | J3 |
| 1 | AC_OUT | AC | J4 |
| 4 | Conn_01x02_Female | button_out | B2, B3, PWM5, PWM6 |
| 2 | Conn_01x03_Female | encoder_out | E10, E11 |
| 1 | Fuse | fuse | F1 |
| 1 | SRD-S-112DM(F-11) | Relay_SPST_SANYOU_SRD_Series_Form_A | K1 |
| 6 | SW | button_out | PW_SW14, PW_SW15, SW16, SW17, SW18, SW19 |
| 1 | B72214S0351K101 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | RV1 |
| 3 | Conn_01x04_Male | stepper_out | S7, S8, S9 |
| 3 | A4988 | A4988 | SD1, SD2, SD3 |
Show 14 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ZLDO1117G50TA | ZLDO1117G50TA | VREG1 |
| 3 | D | D_A-405_P7.62mm_Horizontal | D1, D5, D6 |
| 1 | SMBJ20A | SMBJ20A | D2 |
| 1 | CLM3C-MKW-CWAXB133 | CLM3C-MKW-CWAXB133 | D3 |
| 1 | B1931UD--05D000314U1930 | B1931UD--05D000314U1930 | D4 |
| 1 | THT_LED | PinHeader_1x02_P2.54mm_Vertical | D7 |
| 1 | 1uF | 5.5mm_cap | C1 |
| 1 | 10uF | CP_Radial_D4.0mm_P1.50mm | C2 |
| 1 | 1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 9 | 10k | RNCP0805FTD10K0 | R2, R6, R7, R8, R9, R10, R11, R12 +1 |
| 1 | 43F3R0E | R_Axial_DIN0614_L14.3mm_D5.7mm_P20.32mm_Horizontal | R3 |
| 1 | 440 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R4 |
| 1 | 600 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R5 |
| 1 | 660 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R14 |
Final design files
The KiCad project lives in the c3n3/desg-of-senio repository on GitHub; these links point at the commit this page was built from.
Final: common questions
What microcontroller does the Final use?
The Final is built around the esp32_dev, from the ESP32 family.
How big is the Final PCB?
The Final measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Final?
61 components, from 34 distinct parts. The full bill of materials is listed on this page.
Where can I download the Final design files?
From the c3n3/desg-of-senio repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Final design in my own project?
The repository has no license, so all rights stay with c3n3. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Final without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.
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