4 layers36.7 × 49 mm
Megadesk companion
gcormier/megadesk_companion
companion board for megadesk to add smarthome functionality
35 parts27
4 layers54.7 × 75.8 mm
Esphome dot
gcormier/esphome-dot16Beginnings of a replacement PCB for Amazon Echo Dot v5.
- Size
- 54.7 × 75.8 mm
- Copper layers
- 4
- Thickness
- 1.61 mm
- Parts
- 62
- Nets
- 113
- Pads
- 283
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 8 Jun 2024
- Updated
- 2 Nov 2024
Overview
Esphome dot is an open-source printed circuit board by gcormier, from the gcormier/esphome-dot repository on GitHub. It is a 4-layer board of 54.7 × 75.8 mm with 62 parts on 113 nets.
It is built around the ESP32-S3R8, TAS5805MPWP and TPS62932DRL, with the W25Q128JVSIQ, ADC-055B-9 and ANT3216LL00R2400A among its other parts. Its parts include 36 capacitors, 9 connectors, 7 resistors, 4 ICs and 2 diodes. It belongs with the home automation and IoT boards and the ESP32 boards of this library.
Main components
8
ESP32-S3R8
QFN-56(7x7)-40℃~+65℃ -74.2dBm 150Mbps 18.5dBm 2.412GHz~2.484GHz 2.4GHz 283mA 3V~3.6V 88mA Bluetooth、WiFi DMA function SPI、USB、UART、I2C、I2S transceiver QFN-56(7x7) RF Transceiver ICs ROHSEspressif SystemsRF Transceiver ICs
TAS5805MPWP
HTSSOP-28-EP-25℃~+85℃ 0.03% 107dB 16.5mA 2-Channel 23W×2@8Ω 4.5V~26.4V 72dB Class D Overvoltage protection、Digitally programmable gain、Built-in audio processing HTSSOP-28-EP Audio Amplifiers ROHSTexas InstrumentsAudio Amplifiers
TPS62932DRL
SOT-5x3-8-40℃~+150℃@(TJ) 1 12uA 2.2MHz 2A 3.8V~30V 800mV~22V Adjustable Buck Buck Built-in Yes SOT-5x3-8 DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
W25Q128JVSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 120ms@(32KB) 128Mbit 133MHz 1uA 2.7V~3.6V 20 Years 3ms Power-on reset、Hardware write protection、Software write protection、Write enable latch、Absolute write protection SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASHADC-055B-9
-DC Power ConnectorsADAM TECH
ANT3216LL00R2400A
1206-40℃~+105℃ 1.2mm 1.6mm 160MHz 1W 2.45GHz 3.2mm 5.05dBi 50Ω 1206 Antennas ROHSYAGEOAntennas
CUS05S40.H3F
USC40V 500mA 50uA@40V 560mV@500mA 5A Independent USC Schottky Diodes ROHSToshibaSchottky Diodes
SMAJ22A
DO-214AC(SMA)-65℃~+150℃ 11.3A@10/1000us 1uA 22V 26.9V 35.5V 400W@10/1000us IEC 61000-4-2、IEC 61000-4-4 TVS Unidirectional DO-214AC(SMA) ESD and Surge Protection (TVS/ESD) ROHSLittelfuseESD And Surge Protection (TVS/ESD)
README
README.mdesphome-dot
Beginnings of a replacement PCB for Amazon Echo Dot v5.
todo
- Physical board dimensions
- Figure out pinout of ribbon cable
- figure out PDN mystery. it needs to be controlled to use register 0x00 for pullup settings
- Determine if ESP32 module can be used or needs custom design for RF purposes
- Schematic
- PCB design and layout
- BOM
- Firmware
- Manufacture
dfm
- Holes around spring fingers for protective cap (1.6mm hole, 1.5mm plastic pin)
Notice
Amazon Echo Dot is a trademark of Amazon.com, Inc. This project is not affiliated with Amazon.com, Inc. in any way.
Parts
62| Qty | Value | Footprint | References |
|---|---|---|---|
| 13 | 100n | Capacitor_SMD:C_0402_1005Metric | C203, C205, C207, C209, C212, C213, C214, C303, C309, C314, C401, C403, C404 |
| 6 | 10u | Capacitor_SMD:C_0603_1608Metric | C206, C208, C304, C405, C407, C408 |
| 4 | 220n | Capacitor_SMD:C_0805_2012Metric | C305, C306, C307, C308 |
| 3 | 1u | Capacitor_SMD:C_0402_1005Metric | C204, C301, C302 |
| 2 | 10k | Resistor_SMD:R_0402_1005Metric | R205, R206 |
| 2 | 20pF | Capacitor_SMD:C_0402_1005Metric | C201, C202 |
| 2 | 22u | Capacitor_SMD:C_0805_2012Metric | C310, C315 |
| 2 | 330u | Capacitor_SMD:CP_Elec_10x10.5 | C312, C316 |
| 2 | 5k1 | Resistor_SMD:R_0402_1005Metric | R401, R402 |
| 2 | 680n | Capacitor_SMD:C_0805_2012Metric | C311, C313 |
| 2 | ADC-055B-9 | !esphome-dot:BarrelJack_AdamTech_ADC-055B-9 | J401, J403 |
| 1 | 10u | Capacitor_SMD:C_0805_2012Metric | C402 |
| 1 | 20V | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Horizontal | J404 |
| 1 | 20v | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Horizontal | J405 |
| 1 | 22 | Resistor_SMD:R_0402_1005Metric | R201 |
| 1 | 22k | Resistor_SMD:R_0402_1005Metric | R404 |
| 1 | 27p | Capacitor_SMD:C_0603_1608Metric | C406 |
| 1 | 2nH | Inductor_SMD:L_0402_1005Metric | L201 |
| 1 | 40MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y201 |
| 1 | 68k | Resistor_SMD:R_0402_1005Metric | R403 |
| 1 | ANT3216LL00R2400A | Capacitor_SMD:C_1206_3216Metric | AE201 |
| 1 | CUS05S40.H3F | Diode_SMD:D_SOD-323 | D401 |
| 1 | ESP32-S3R8 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP4x4mm | U201 |
| 1 | Input | alexa:CONN_502598-2593_MOLEX | J1 |
| 1 | RESET | Button_Switch_SMD:SW_Push_1P1T_XKB_TS-1187A | SW201 |
| 1 | SMAJ22A | Diode_SMD:D_SMA | D403 |
| 1 | SPK1 | alexa:SF2212 | J5 |
| 1 | SPK2 | alexa:SF2212 | J6 |
| 1 | TAS5805M | Package_SO:TSSOP-28-1EP_4.4x9.7mm_P0.65mm_EP3.4x9.7mm_Mask3.1x4.05mm | U301 |
| 1 | TPS62932 | Package_TO_SOT_SMD:SOT-583-8 | U401 |
| 1 | USBC | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J402 |
| 1 | W25Q128JVSIQ | Package_SO:SOIC-8_5.23x5.23mm_P1.27mm | U202 |
| 1 | eflashy32 | Connector_Harwin:Harwin_M20-89006xx_1x06_P2.54mm_Horizontal | J201 |
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Questions
How big is the Esphome dot PCB?
It measures 54.7 × 75.8 mm and has 4 copper layers, 1.61 mm thick.
What parts does the Esphome dot use?
62 parts, built around the ESP32-S3R8, TAS5805MPWP, TPS62932DRL and W25Q128JVSIQ. 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.
Where can I download the Esphome dot KiCad files?
From the gcormier/esphome-dot repository on GitHub, at the commit this page was made from: the board is pcb/esphome-dot.kicad_pcb and its schematic pcb/audio.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Esphome dot design in my own project?
Its repository states no licence, so its author keeps all rights: ask gcormier before reusing the design.