Nest mini v2-voice
About the Nest mini v2-voice PCB
Nest mini v2-voice is an open source ESP32 PCB design by marceldale, published on GitHub under the CERN-OHL-S-2.0 license. It is a 4-layer board measuring 74.5 × 70.6 mm, with 231 components from 96 distinct parts.
Its main chip is the ESP32-S3R8, from the ESP32 family. Other key parts include the TPS62130ARGTR, AP22802AW5-7, TLV70018DCKR, TPS62065DSGR and W25Q128JVSIQ. By type, the board carries 106 capacitors, 70 resistors, 16 ICs, 12 inductors, 6 LEDs and 5 diodes.
It belongs with the iot & wireless, audio and rf & radio designs in this gallery.
From the project
Open voice satellite board for the Google Nest Mini (2nd gen): local Home Assistant voice assistant with ESP32-S3 + XMOS XU316, ESPHome, Voice PE compatible. Open hardware, prototype stage.
A drop-in replacement board that turns a Google Nest Mini (2nd gen) into a fully local voice assistant for Home Assistant. Started from the open design by iMike78 (nest-mini-drop-in-pcb, CERN-OHL-S v2) and since then reworked, verified and extended into its own board. Everything that was changed, and why, is in CHANGES.md; the people and projects this one stands on are named under Credits.
Main components on the Nest mini v2-voice
Nest mini v2-voice bill of materials (BOM)
231 components, 96 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | TPS62130ARGTR TPS62130 Texas Instruments | VQFN-16-1EP_3x3mm_P0.5mm_EP1.68x1.68mm_ThermalVias | U3, U7 |
| 1 | AP22802AW5-7 DIODES(美台) | SOT-23-5 | U4 |
| 1 | TLV70018DCKR Texas Instruments | SOT65P210X110-5N | U5 |
| 1 | TPS62065DSGR Texas Instruments | Texas_DSG0008A_WSON-8-1EP_2x2mm_P0.5mm_EP0.9x1.6mm | U6 |
| 1 | ESP32-S3R8 Espressif Systems | QFN40P700X700X90-57N | U8 |
| 1 | W25Q128JVSIQ Winbond Elec | SOIC-8_5.3x5.3mm_P1.27mm | U9 |
| 1 | XU316-1024-QF60B-C24 XMOS | XU316-1024-QF60B-C24 | U10 |
| 1 | W25Q32JVSSIQ Winbond Elec | SOIC-8_5.3x5.3mm_P1.27mm | U11 |
| 1 | SN74LVC125APWR Texas Instruments | SOP65P640X120-14N | U12 |
| 1 | TLV73333PDBVR Texas Instruments | TLV73333PDBVR | U13 |
| 1 | TAS5805MPWPR Texas Instruments | TAS5805MPWPR | U14 |
| 1 | MPR121QR2 NXP | MPR121QR2 | U15 |
| 1 | TS3USB221ERSER TI | TS3USB221ERSER | U16 |
| 1 | LM66100DCKR LM66100DCK Texas Instruments | SOT-363_SC-70-6 | U18 |
| 1 | 74AHCT1G125 Nexperia | SOT-353_SC-70-5 | U19 |
| 1 | LBSS138WT1G LRC | SC-70-3_L2.1-W1.3-P0.65-LS2.1-BR | Q1 |
| 2 | LBSS138WT1G LRC | SOT-323_SC-70 | Q2, Q4 |
| 1 | BC847B hongjiacheng | SOT-23 | Q3 |
| 1 | 7F24000E12UCG 24MHz 12pF SJK(SHENZHEN CRYSTAL TECH) | X4-SMD-2.0X1.6MM | X1 |
| 1 | Y201640MDBCX 40MHz JLYE | Crystal_SMD_2016-4Pin_2.0x1.6mm | Y1 |
Show 76 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 1054500101 usb_c MOLEX | USB-C-SMD_TYPE-C-USB-18 | J1 |
| 1 | XMOS JTAG | xSYS2_2x05_P1.27mm_Pads | J4 |
| 1 | 5-1775443-2 1775443-2 TE Connectivity | 1775443-2 | J5 |
| 1 | C424659 FH34SRJ-12S-0.5SH(50) Hirose | HRS_FH34SRJ-12S-0.5SH_50_ | J6 |
| 1 | 2450AT18A100E JOHANSON DESIGN | Johanson_2450AT18x100 | AE1 |
| 2 | MMICT390200012 TDK InvenSense | MIC_T3902 | MK1, MK2 |
| 1 | FH34SRJ-10S-0.5SH_50_ Hirose | HRS_FH34SRJ-10S-0.5SH_50_ | POWER_IN1 |
| 1 | PTS810SJS250SMTRLFS Reset C&K | SW-SMD_4P-L4.2-W3.2-P2.15-LS4.5 | SW1 |
| 1 | PTS810SJS250SMTRLFS BOOT C&K | SW-SMD_4P-L4.2-W3.2-P2.15-LS4.5 | SW2 |
| 2 | SK6812D-EC3210R OPSCO Optoelectronics | LED-SMD_4P_SK6812D-EC3210R | LED1, LED6 |
| 4 | SK6812-EC20 OPSCO Optoelectronics | SK6805-EC20 | LED2, LED3, LED4, LED5 |
| 1 | TPD1E10B06DPYR Texas Instruments | TPD1E05U06DPYR | D1 |
| 2 | PESD0402V05 DOWO | D_0402_1005Metric | D3, D4 |
| 1 | LRB520S-30T1G LRC | D_SOD-523 | D5 |
| 1 | RB521S30T1G-DW RB521S30T1G ON SEMICONDUCTOR | DIOM168X70N | D6 |
| 1 | BLM18PG300SN1D 30R Murata | R_0603_1608Metric | FB1 |
| 1 | BLM18PG121SN1D 120R Murata | BLM18PG121SN1D | FB2 |
| 1 | BLM18AG121SN1D 120R Murata | BLM18PG121SN1D | FB4 |
| 1 | BLM18KG601SN1D 600R Murata | BLM18PG121SN1D | FB5 |
| 2 | SRP4020TA-2R2M 2.2uH BOURNS | L_Bourns_SRP4020TA | L1, L2 |
| 1 | SDCL1005C3N3STDF 3.3nH Sunlord | L_0402_1005Metric | L3 |
| 1 | MHQ1005P2N7BT000 2.7nH TDK | L_0402_1005Metric | L4 |
| 1 | LQG15HS2N2B02D 2.2nH Murata Electronics | L_0402_1005Metric | L5 |
| 2 | MTQH404030S100MBT 10uH MetalLions | MTQH404030S100MBT | L6, L7 |
| 1 | WPN201610U1R0MTY01 1uH Sunlord | L_Murata_DFE201610P | L8 |
| 8 | CL21A226MAQNNNE 22uF Samsung Electro-Mechanics | C_0805_2012Metric | C3, C10, C14, C22, C79, C81, C84, C85 |
| 2 | CL21A106KAYNNNE 10uF Samsung Electro-Mechanics | C_0805_2012Metric | C4, C15 |
| 2 | CL05B103KB5NNNC 10nF Samsung Electro-Mechanics | C_0402_1005Metric | C5, C16 |
| 3 | CL10A475KO8NNNC 4.7uF Samsung Electro-Mechanics | C_0603_1608Metric | C6, C80, C90 |
| 5 | CC0603KRX7R9BB104 100nF YAGEO | C_0603_1608Metric | C7, C8, C25, C82, C91 |
| 2 | 0603CG221J500NT 220pF FH (Guangdong Fenghua Advanced Tech) | C_0603_1608Metric | C9, C21 |
| 3 | CC0805KRX7R9BB104 100nF YAGEO | C_0805_2012Metric | C11, C19, C23 |
| 2 | CL10A225KO8NNNC 2.2uF Samsung Electro-Mechanics | C_0603_1608Metric | C12, C64 |
| 4 | CL10A106KP8NNNC 10uF Samsung Electro-Mechanics | C_0603_1608Metric | C13, C17, C18, C107 |
| 1 | CL21A475KAQNNNE 4.7uF Samsung Electro-Mechanics | C_0805_2012Metric | C20 |
| 9 | CL05A105KA5NQNC 1uF Samsung Electro-Mechanics | C_0402_1005Metric | C24, C31, C35, C39, C44, C53, C63, C68 +1 |
| 3 | 0402CG120J500NT 12pF FH (Guangdong Fenghua Advanced Tech) | C_0402_1005Metric | C26, C27, C29 |
| 1 | CC0402BRNPO9BN1R2 1.2pF YAGEO | C_0402_1005Metric | C28 |
| 45 | CL05B104KO5NNNC 100nF Samsung Electro-Mechanics | C_0402_1005Metric | C30, C32, C33, C34, C37, C38, C41, C42 +37 |
| 1 | 0402CG2R4C500NT 2.4pF FH (Guangdong Fenghua Advanced Tech) | C_0402_1005Metric | C36 |
| 1 | CL05A106MQ5NUNC 10uF Samsung Electro-Mechanics | C_0402_1005Metric | C40 |
| 2 | 0402CG200J500NT 20pF FH (Guangdong Fenghua Advanced Tech) | C_0402_1005Metric | C48, C54 |
| 4 | CC0603KRX7R9BB224 0.22uF YAGEO | C_0603_1608Metric | C74, C75, C76, C77 |
| 3 | CL05B104KB54PNC 100nF Samsung Electro-Mechanics | C_0402_1005Metric | C83, C88, C105 |
| 2 | CC0805KKX7R9BB684 0.68uF YAGEO | C_0805_2012Metric | C86, C87 |
| 1 | MA25V220M6X8 220uF jieerrui | C_Elec_6.3x7.7 | C89 |
| 1 | 0402CG121J500NT 120pF FH (Guangdong Fenghua Advanced Tech) | C_0402_1005Metric | C100 |
| 1 | GRM0335C1H1R0BA01D 1.0pF DNP Murata | C_0201_0603Metric | C110 |
| 2 | 0402WGF5101TCE 5.1k UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R1, R5 |
| 2 | RC0402JR-0722RL 22R UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R2, R3 |
| 15 | 0402WGF0000TCE 0R UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R7, R14, R22, R24, R27, R28, R29, R30 +7 |
| 5 | 0402WGF1003TCE 100k UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R8, R9, R15, R41, R75 |
| 2 | 100k UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R10, R16 |
| 2 | 0603WAF499JT5E 49.9R UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R11, R17 |
| 1 | 0603WAF2103T5E 210k UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R12 |
| 1 | RT0603BRD0740KL 40k YAGEO | R_0603_1608Metric | R13 |
| 1 | 0603WAF6812T5E 68.1k UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R18 |
| 1 | 0603WAF2212T5E 22.1k UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R19 |
| 5 | 0402WGF1002TCE 10k UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R20, R21, R58, R79, R81 |
| 4 | 0402WGF4701TCE 4.7k UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R32, R33, R50, R70 |
| 3 | 0402WGF1004TCE 1M UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R34, R73, R76 |
| 1 | CR0402FF6800G 680R LIZ Elec | R_0402_1005Metric | R35 |
| 4 | 0402WGF4702TCE 47k UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R36, R52, R65, R71 |
| 8 | 0402WGF1000TCE 100R UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R39, R55, R56, R59, R60, R62, R63, R80 |
| 1 | RC0402JR-07100RL 100R UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R47 |
| 1 | RC0402FR-07470KL 470k UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R48 |
| 1 | RC0402FR-0710KL 10k UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R49 |
| 1 | 0402WGF3301TCE 3.3k UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R53 |
| 1 | 0402WGF4703TCE 470k UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R54 |
| 1 | 0402WGF1001TCE 1k UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R57 |
| 1 | 1206W4F0000T5E 0R UNI-ROYAL(Uniroyal Elec) | R_1206_3216Metric | R66 |
| 1 | 0603WAF0000T5E 0R UNI-ROYAL(Uniroyal Elec) | R_0603_1608Metric | R67 |
| 2 | 0805W8F0000T5E 0R UNI-ROYAL(Uniroyal Elec) | R_0805_2012Metric | R68, R69 |
| 1 | 0402WGF7502TCE 75k UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R72 |
| 1 | 0402WGF5102TCE 51k UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R74 |
| 1 | 0402WGF3303TCE 330k UNI-ROYAL(Uniroyal Elec) | R_0402_1005Metric | R77 |
Nest mini v2-voice design files
The KiCad project lives in the marceldale/nest-mini-v2-voice repository on GitHub; these links point at the commit this page was built from.
Nest mini v2-voice: common questions
What microcontroller does the Nest mini v2-voice use?
The Nest mini v2-voice is built around the ESP32-S3R8, from the ESP32 family.
How big is the Nest mini v2-voice PCB?
The Nest mini v2-voice measures 74.5 × 70.6 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Nest mini v2-voice?
231 components, from 96 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 Nest mini v2-voice design files?
From the marceldale/nest-mini-v2-voice repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Nest mini v2-voice design in my own project?
Yes, under the terms of its CERN-OHL-S-2.0 license, which marceldale chose for the repository.
Can I test firmware for the Nest mini v2-voice 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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