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Wemos D1 Shield Level Shifter D5 and D6 Shifted

2 months ago 75
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Shield for Wemos D1 Mini. It provides two 3.3V GPIO and two 5V GPIO each with supply voltage, and ground terminals.

The two 3.3V GPIO have provisions for optional pullup resistors. These can be used with sensors or 1-wire devices requiring pullup.

Two additional GPIO are for 5V devices with level shifters to provide 5V Input or Output.

I designed a 3d printable bracket to hold this board and attached the stl file.


Wemos D1 Shield for WLED Schematic

Wemos D1 Shield for WLED PCB


ID Name Designator Footprint Quantity BOM_Manufacturer Part
1 BSS138 Q1,Q2 SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR 2 BSS138
2 10K R2,R3,R4,R5 R1206 4 SY1206JN10KP
3 4K7 R1,R6 R1206 2 SY1206JN4K7P
4 D5 Level Shifted GPIO for 5V Input or Output U4 CONN-TH_3P-P3.50_KF350-3.5-3P 1 KF350-3.5-3P
5 D6 Level Shifted GPIO for 5V Input or Output U2 CONN-TH_3P-P3.50_KF350-3.5-3P 1 KF350-3.5-3P
6 D2 Input Direct U3 CONN-TH_3P-P3.50_KF350-3.5-3P 1 KF350-3.5-3P
7 D7 Input Direct U5 CONN-TH_3P-P3.50_KF350-3.5-3P 1 KF350-3.5-3P
8 WEMOS D1 U1 WEMOS D1 1 ?


Filename Download
Wemos Shield Bracket.stl
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