aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorKing Kévin <kingkevin@cuvoodoo.info>2021-01-28 13:17:09 +0100
committerKing Kévin <kingkevin@cuvoodoo.info>2021-01-28 13:17:09 +0100
commit21a23e18c11abd3a812847f9d68df00c55fb8a37 (patch)
tree258643b2b4b5292a46a70dc0cf57db79a39f693c
parent93d85322d55700e12be978b2164e6b0a3d5bdda3 (diff)
README: fix listssound_level_meter
-rw-r--r--README.md5
1 files changed, 5 insertions, 0 deletions
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