110. Connection (Pinout) Examples

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Ricardo Guzman (Richonguzman) edited this page Dec 31, 2024 · 2 revisions

This are examples of pinout connections for Buzzer, Leds and Keyboards for a few boards

T-Beam

pin02 : Message Rx Led (3mm Led with 470 ohms resistor)
pin13 : Flashlight Led (5mm ultra-bright Led with 68 ohms resistor)
pin25 : Buzzer VCC (to Emiter pin of BC557)
pin33 : Buzzer Tone (to 1K resistor into Base of BC557)
pin21 : CardKB SDA(Yellow)
pin22 : CardKB SCL(White)

Heltec Wireless Tracker

pin04 : Message Rx Led (3mm Led with 470 ohms resistor)
pin05 : Flashlight Led (5mm ultra-bright Led with 68 ohms resistor)
pin45 : Buzzer VCC (to Emiter pin of BC557)
pin46 : Buzzer Tone (to 1K resistor into Base of BC557)
pin07 : CardKB SDA(Yellow)
pin06 : CardKB SCL(White)

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