I 3 a 5 TPL O1P2 ne ingtlot i jountingHole USB-—C Plu g vBuS vBuS Lo +3.3V TestPoint x x Digital RGB LED 13 OPA Ha PL pt TestPoint | TestPoint MountingHole USB_C_Plug_USB2.0 u4 . BAT2O,FILM TLV70036_SOT23-5 IT exp veuse-A4 4 5 +3.6V cl cs IN ouT-—~» ; 100nF—- 100nF as Rt 5.1k LEDEN I), bea = v Sl_# mal VCONNeB5 x & GND 2 2 = GND \ q D0 1 S38 5 cp AZ _USB_DN GND bal Paco So & 3 Dos a 02 D1 2\es01 2 = S$ AQ 3 > S D+qA6__USB_DP- GND LEDIN 4} 51) Soyr}2-LED-OUT AL rn pane : a +3.3V ) SEV) ws20128 22 Sloave SP| Flash (optional "| $1 PA0s +3.3V a R3 1 Pa06 rn = 2 PAO7 = ¢& a rj GND 5.1k to aog I J PAOS sb 4 PALO suasticopl 8{51199 3 so/io1 2 FLASH-cIPO PALL ELASH CLK _6 sci x u2 posits cs Gb2sai6ct - 3 WP/i02 DNP GND 02. 45 pais Liowwsios ¥ LEDEN __16)p 15 R6 5.1k SDA tate ut =] sc 7 1 pata ATSAMD21E18A—M a PALS. v STEMMA QT, SWD Header FLASH CIPO20) 4 9 GND Qwiic, (optional) Grove Header 43.3V ELASH_COPI24) 5,59 FLASH CLK 22] ELASH_CLK 22/5 a7 +5.3V USB_DN 23) 554 5V to 3.3V 600mA * USBDP 24 + ed vBuSs +3.3V = nN L Ze] 2 R2 es 25) pA27 us SDA__3 S RESeTeHO tk & 21 pa28 PWRFLAG ap2142k-3.3 ono $2 Ep [ost SH tet ONE : : 3 SWDCLK/TCKe# SWCLK 34 5439 tea + [ vour| ce Conn_ARM_JTAG_SWD_10 SWDIO/TMS=-2 SwDIO ___32) pq34. T 10uF 2 10uF DNP % SWo/TDOE Sx os a . 2 uct 8 29 RESET 2 aj External 0.1°° Header Bo Ru 51k a racy swt 4 4 +3.3V ran RESET 100nF TI | GND + GND 7 Internal 0.1" Header Conn_01x10 (optional)
TODO: Use lower cost tact switch TODO: Use lower cost 10uF caps TODO: Use lower cost schottky
+3.3V VBUS 4 Conn_02x06_Odd_Even 4 2
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Sheet: / File: Microcontroller.sch
Title: Microcontroller Expansion Card
Size: Ad Date: 2021-05-17 Rev: X1.4 KiCad E.D.A. kicad (5.1.8)—1 Id: 1/4 T 3 q [ 5 I