Article
Elektor eXpansion Board v1.0
For ESP32-S3 and other XIAO controller boards
Compact, inexpensive, and powerful! The Seeed XIAO family includes seven stamp-sized breakout boards with ESP32 controllers as well as with the RP2040, the SAMD21 and others. However, for connectivity in the prototyping phase, some extension board is needed. The Elektor eXpansion board integrates a lot of connectors (not just from the Seeed ecosystem), as well as a user button and LED plus some protection features.
Materials
Component list
Component List
Resistors
R1 = 220 Ω
R2 = 10 k
Semiconductors
D1, D2 = SMF05C.TCT
LED1 = 3 mm 3 V LED
MOD1 = XIAO series microcontroller board
Others
J1...J9 = 4-pin Grove connector (2 mm pitch)
J10 = 2-pin JST PH connector (2 mm pitch)
J11, J12 = 4-pin Qwiic connector (1 mm pitch)
J13 = 3-pin Terminal Block (5.08 mm pitch)
SW1 = 6 mm Push Button
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