diff --git a/README.md b/README.md index 79b1fb9..e0307bb 100644 --- a/README.md +++ b/README.md @@ -39,6 +39,7 @@ connections Connect the peripherals as described below. MT3608 voltage regulator module: + - IN-: ground - IN+: 5V - OUT-: ground @@ -50,6 +51,7 @@ It kind of also works with 5V, but the LCD is very dim. Since I don't know if the measurements remain accurate at 5V, I prefer to provide the voltage it was designed for. HC-05 Bluetooth SPP module: + - STATE: no connect - RX: USART3_TX/PB10 - TX: no connect @@ -58,11 +60,13 @@ HC-05 Bluetooth SPP module: - EN: no connect n-channel MOSFET 2N7000: + - 1 source: ground - 2 gate: PB0, add pull down resistor - 3 drain: IDC 2x3 pin 2 IDC 2x3 2.54 mm, micro-controller side: + - 1: ground - 2: PB13, SPI2_SCK - 3: 2N7000 pin 3 @@ -71,6 +75,7 @@ IDC 2x3 2.54 mm, micro-controller side: - 6: PA8 IDC 2x3 2.54 mm, GM1351 side (solder wires on the PCB): + - 1: B- - 2: LCD_WR - 3: D7/D8, on the text side, to control the ON/OFF button