Connectors.md
MCU board

During prototyping and testing the MCU might get damaged (over-voltage, faulty currents, water).
Once the ESP32-WROOM is soldered to the PCB, it is tricky to remove on the field without the right tools.

For a break-out connector, we need at least these signals:


GND
3.3V
ADC Vin
NTC
Half Bridge SD
Half Bridge HIN
Half bridge LIN
Bflow SD
SDA
SCL
ALERT
LED



2.54mm pitch might be too clunky
1.27mm appears to be a good fit
via-less solution preferred (SMD pin headers)
programmer interface and USB on external board


<![CDATA[]]>https://www.digikey.com/en/products/category/rectangular-connectors/2027<![CDATA[]]>

<![CDATA[]]>https://www.lcsc.com/product-detail/Female-Headers_HOAUC-2343U-240CNG1MN...<![CDATA[]]>
<![CDATA[]]>https://www.lcsc.com/product-detail/Female-Headers_Yxcon-F136-1104S3CMUB...<![CDATA[]]>

Samtec SSM-107-L-SV

USB-C

Standing <![CDATA[]]>https://www.lcsc.com/product-detail/USB-Connectors_XUNPU-TYPEC-303-ACP16...<![CDATA[]]>
SMD <![CDATA[]]>https://www.lcsc.com/product-detail/USB-Connectors_SHOU-HAN-TYPE-C-16P-Q...<![CDATA[]]>

Power Connectors, Lugs


preferably cross-head (Phillips) screws
connectors with 51A or 65A have good wire gauge
<![CDATA[]]>https://ihiconnectors.com/PCB-Technical-Information.htm#B2A-B2C-PCB<![CDATA[]]>
<![CDATA[]]>https://www.digikey.de/en/products/filter/terminal-blocks/wire-to-board/371<![CDATA[]]>
<![CDATA[]]>https://www.digikey.de/en/products/detail/amphenol-anytek/VP0285850000G/...<![CDATA[]]>
<![CDATA[]]>https://www.digikey.de/en/products/detail/altech-corporation/MV-1002/945...<![CDATA[]]>


Terminal Lug
CBS35-36-C
CB35-36-CY
CXS35-36-C

<![CDATA[]]>https://lugsdirect.com/single-wire-lugs.htm<![CDATA[]]>

Standards


UEXT
Pmod <![CDATA[]]>https://digilent.com/reference/_media/reference/pmod/pmod-interface-spec...<![CDATA[]]>



10 pin, 1.27mm pitch, SMD

from <![CDATA[]]>https://www.renesas.com/en/document/mae/ek-ra2l1-v1-users-manual?r=1398391<![CDATA[]]> ::
1. Two Seeed Grove® system (I2C/Analog) connectors
2. SparkFun® Qwiic® connector
3. Two Digilent Pmod™ (SPI and UART) connectors
4. Arduino™ (Uno R3) connector
5. MikroElektronika™ mikroBUS connector