Q2-v2-placement
About the Q2-v2-placement PCB
Q2-v2-placement is an open source ESP32 PCB design by 0x616c6f6e, published on GitHub. It is a 6-layer board measuring 46 × 76 mm, with 126 components from 126 distinct parts.
Its main chip is the ESP32-S31NRV16, from the ESP32 family. Other key parts include the XM25QH64DHIQT, DSCB_BQ25895RTW, TLV62568DBVR, ME6211C18M5G-N and GEK100. By type, the board carries 55 capacitors, 40 resistors, 14 ICs, 3 connectors, 3 inductors and 2 diodes.
From the project
这是以方便布线为优先的 PCB 布局规划工程，不是完成电路设计的第二版主板。打开 q2-v2-placement.kicadpro` 后进入同名 PCB；本目录没有第二版原理图。不要用第一版原理图直接更新此板，否则会重新加入模组和旧屏幕接口。
这是以方便布线为优先的 PCB 布局规划工程，不是完成电路设计的第二版主板。打开 q2-v2-placement.kicadpro` 后进入同名 PCB；本目录没有第二版原理图。不要用第一版原理图直接更新此板，否则会重新加入模组和旧屏幕接口。
源板为 ../hardware-q2/ProPrjesp32s31-mp42026-09-22.kicadpcb`。源板及生产用文件未改动。规划副本保留原器件的网络信息及 UUID，清除了走线、过孔和铺铜，以便后续手动布线。126 个现有/候选器件不包含尚未设计的裸芯片配套电路。
统一按 KiCad 正面顶视图，板框中心线包围框左上角为原点，X 向右、Y 向下，单位 mm。绝对坐标原点为 (128.868, 67.647)。正面朝屏幕，背面朝后盖。
安装孔、USB、耳机座、TF 卡座、按键 FPC1 坐标和方向锁定。CN2/CN3 保留焊盘位置，按之前选定的低矮线束方案使用，移除了高插座的装配边界和模型，禁止再装原弯脚插座。
Main components on the Q2-v2-placement
Q2-v2-placement bill of materials (BOM)
126 components, 126 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP32-S31NRV16 RX8130CE:BB Espressif | Plan_U1 | U1 |
| 1 | XM25QH64DHIQT CS43131-CNZ XMC | Plan_U2 | U2 |
| 1 | DSCB_BQ25895RTW | Plan_U3 | U3 |
| 1 | TLV62568DBVR | Plan_U4 | U4 |
| 1 | ME6211C18M5G-N | Plan_U5 | U5 |
| 1 | GEK100 | Plan_U6 | U6 |
| 1 | PCA9306DQER | Plan_U7 | U7 |
| 1 | SN74LV4T125RGYR | Plan_U8 | U8 |
| 1 | W25Q16JVSSIQ | Plan_U10 | U10 |
| 1 | DRV2605LDGSR | Plan_U11 | U11 |
| 1 | CH343P | Plan_U12 | U12 |
| 1 | STC3115AIQT | Plan_U14 | U14 |
| 1 | LSM6DS3TR-C | Plan_U15 | U15 |
| 1 | SGM7229YMS10G/TR | Plan_U17 | U17 |
| 1 | 26MHz | Plan_X1 | X1 |
| 1 | PJ-342B-TX-SMT | Plan_CN1 | CN1 |
| 1 | SOLDER_WIRES_3P | Plan_CN2 | CN2 |
| 1 | SOLDER_WIRES_2P | Plan_CN3 | CN3 |
| 1 | TF PUSH | Plan_CARD2 | CARD2 |
| 1 | HC-FPC-05-10-12RLTAG | Plan_FPC1 | FPC1 |
Show 106 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | OK-23GF024-04 | Plan_JDISP1 | JDISP1 |
| 1 | — | Plan_SCREW1 | SCREW1 |
| 1 | — | Plan_SCREW2 | SCREW2 |
| 1 | — | Plan_SCREW3 | SCREW3 |
| 1 | — | Plan_SCREW5 | SCREW5 |
| 1 | TYPE-C 16PIN 2MD(073) | Plan_USB1 | USB1 |
| 1 | BV-FA03ZCF USBLC6-2SC6 Bencent | Plan_D1 | D1 |
| 1 | B5817W | Plan_D2 | D2 |
| 1 | 2.2uH Murata | Plan_L1 | L1 |
| 1 | 2.2uH Murata | Plan_L2 | L2 |
| 1 | LQP03TN24NH02D BLM18KG601SN1D Murata | Plan_L3 | L3 |
| 1 | GRM0335C1H240JA01D 10uF Murata | Plan_C1 | C1 |
| 1 | GRM0335C1H270JA01D 10uF Murata | Plan_C2 | C2 |
| 1 | 100nF Murata | Plan_C3 | C3 |
| 1 | 1uF Murata | Plan_C4 | C4 |
| 1 | GRM033R60J105MEA2D 1uF Murata | Plan_C5 | C5 |
| 1 | GRM033R71A103KA01D 100nF Murata | Plan_C6 | C6 |
| 1 | 100nF Murata | Plan_C7 | C7 |
| 1 | 22uF Murata | Plan_C8 | C8 |
| 1 | 4.7uF Murata | Plan_C9 | C9 |
| 1 | 10uF | Plan_C10 | C10 |
| 1 | CL05A474KQ5NNNC 47nF Samsung | Plan_C11 | C11 |
| 1 | GRM033R60J104KE19D 10uF Murata | Plan_C12 | C12 |
| 1 | GRM033R60J105MEA2D 100nF Murata | Plan_C13 | C13 |
| 1 | GRM033R60J104KE19D 1uF Murata | Plan_C14 | C14 |
| 1 | CL05A106MQ5NUNC 10uF Samsung | Plan_C15 | C15 |
| 1 | GRM033R60J105MEA2D 47uF Murata | Plan_C16 | C16 |
| 1 | GRM033R60J104KE19D 2.2uF Murata | Plan_C17 | C17 |
| 1 | GRM033R60J104KE19D 22uF Murata | Plan_C18 | C18 |
| 1 | GRM033R60J104KE19D 2.2uF Murata | Plan_C19 | C19 |
| 1 | GRM033R60J104KE19D 2.2uF Murata | Plan_C20 | C20 |
| 1 | GRM033R60J105MEA2D 2.2uF Murata | Plan_C21 | C21 |
| 1 | GRM033R60J104KE19D 2.2uF Murata | Plan_C22 | C22 |
| 1 | GRM033R60J104KE19D 2.2uF Murata | Plan_C23 | C23 |
| 1 | GRM033R60J104KE19D 2.2uF Murata | Plan_C24 | C24 |
| 1 | GRM033R60J104KE19D 2.2uF Murata | Plan_C25 | C25 |
| 1 | 4.7uF | Plan_C26 | C26 |
| 1 | 100nF | Plan_C27 | C27 |
| 1 | 100nF | Plan_C28 | C28 |
| 1 | 100nF | Plan_C29 | C29 |
| 1 | 1uF | Plan_C30 | C30 |
| 1 | 1uF | Plan_C31 | C31 |
| 1 | 10pF | Plan_C32 | C32 |
| 1 | 10pF | Plan_C33 | C33 |
| 1 | 100nF | Plan_C34 | C34 |
| 1 | 100nF | Plan_C35 | C35 |
| 1 | 100nF | Plan_C36 | C36 |
| 1 | 100nF | Plan_C37 | C37 |
| 1 | 100nF | Plan_C38 | C38 |
| 1 | 1uF | Plan_C39 | C39 |
| 1 | 100nF | Plan_C40 | C40 |
| 1 | 1uF | Plan_C41 | C41 |
| 1 | 220nF | Plan_C43 | C43 |
| 1 | 100nF | Plan_C44 | C44 |
| 1 | 100nF | Plan_C45 | C45 |
| 1 | 100nF | Plan_C46 | C46 |
| 1 | 100nF | Plan_C47 | C47 |
| 1 | 100nF | Plan_C48 | C48 |
| 1 | 10uF | Plan_C49 | C49 |
| 1 | 100nF | Plan_C50 | C50 |
| 1 | 100nF | Plan_C51 | C51 |
| 1 | 100nF | Plan_C53 | C53 |
| 1 | 1uF | Plan_C54 | C54 |
| 1 | 100nF | Plan_C58 | C58 |
| 1 | 100nF | Plan_C59 | C59 |
| 1 | 220nF | Plan_C61 | C61 |
| 1 | 0201WMF0000TCE 10mΩ UniOhm | Plan_R1 | R1 |
| 1 | 0201WMF0000TCE 1K UniOhm | Plan_R2 | R2 |
| 1 | 0201WMF0000TCE 22K1 UniOhm | Plan_R3 | R3 |
| 1 | 0201WMF0000TCE 100K UniOhm | Plan_R4 | R4 |
| 1 | 0201WMF0000TCE 100K UniOhm | Plan_R5 | R5 |
| 1 | 0201WMF4990TCE 10K UniOhm | Plan_R6 | R6 |
| 1 | 10K | Plan_R7 | R7 |
| 1 | 0201WMF0000TCE 10K UniOhm | Plan_R8 | R8 |
| 1 | 0201WMF0000TCE 700R UniOhm | Plan_R9 | R9 |
| 1 | 0201WMF1002TCE 10K UniOhm | Plan_R10 | R10 |
| 1 | 100K | Plan_R11 | R11 |
| 1 | 100K | Plan_R12 | R12 |
| 1 | 5K23 | Plan_R13 | R13 |
| 1 | 30K1 | Plan_R14 | R14 |
| 1 | 200K | Plan_R17 | R17 |
| 1 | 10K | Plan_R18 | R18 |
| 1 | 10K | Plan_R19 | R19 |
| 1 | 10K | Plan_R20 | R20 |
| 1 | 100K | Plan_R21 | R21 |
| 1 | 10K | Plan_R22 | R22 |
| 1 | 10K | Plan_R25 | R25 |
| 1 | 10K | Plan_R26 | R26 |
| 1 | 0/NC | Plan_R27 | R27 |
| 1 | 0/NC | Plan_R28 | R28 |
| 1 | 10K | Plan_R29 | R29 |
| 1 | 10K | Plan_R30 | R30 |
| 1 | 5K1 | Plan_R31 | R31 |
| 1 | 5K1 | Plan_R32 | R32 |
| 1 | 1K | Plan_R33 | R33 |
| 1 | 0R | Plan_R34 | R34 |
| 1 | 10K | Plan_R35 | R35 |
| 1 | 10K | Plan_R36 | R36 |
| 1 | 10K | Plan_R37 | R37 |
| 1 | 10K | Plan_R38 | R38 |
| 1 | 10K | Plan_R39 | R39 |
| 1 | 10K | Plan_R42 | R42 |
| 1 | 10K | Plan_R43 | R43 |
| 1 | 10K | Plan_R44 | R44 |
| 1 | 10K | Plan_R45 | R45 |
| 1 | 10K | Plan_R46 | R46 |
Q2-v2-placement design files
The KiCad project lives in the 0x616c6f6e/esp32s31-mp3 repository on GitHub; these links point at the commit this page was built from.
Q2-v2-placement: common questions
What microcontroller does the Q2-v2-placement use?
The Q2-v2-placement is built around the ESP32-S31NRV16, from the ESP32 family.
How big is the Q2-v2-placement PCB?
The Q2-v2-placement measures 46 × 76 mm, has 6 copper layers and is 1.6 mm thick.
How many components are on the Q2-v2-placement?
126 components, from 126 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Q2-v2-placement design files?
From the 0x616c6f6e/esp32s31-mp3 repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Q2-v2-placement design in my own project?
The repository has no license, so all rights stay with 0x616c6f6e. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Q2-v2-placement 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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