From 0f0f13bf57c38d0cde67a3cd083f26e546c1e50e Mon Sep 17 00:00:00 2001
From: dakkar <dakkar@thenautilus.net>
Date: Sat, 22 Aug 2020 12:31:45 +0100
Subject: different wiring

* pins above 33 don't work as output, according to the esp32 source
  code
* the TTGO-T7 / Mini32 doesn't like using some pins
* this still doesn't work
---
 esp32/lego-piano.ino | 18 +++++++++---------
 wiring.rst.txt       |  2 +-
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/esp32/lego-piano.ino b/esp32/lego-piano.ino
index 3cd5986..4a88556 100644
--- a/esp32/lego-piano.ino
+++ b/esp32/lego-piano.ino
@@ -22,7 +22,7 @@ int currentLed = 0;
 int lastSeen = 100;
 
 const int rows[] = { 5, 23, 19, 18, 26 };
-const int cols[] = { 34, 33, 35, 21, 22 };
+const int cols[] = { 7, 33, 8, 21, 22 };
 const int adc[] = { 2, 4, 12, 27, 14 };
 const int ampEnable = 32;
 
@@ -37,8 +37,8 @@ void setup() {
   dac_output_enable(DAC_CHANNEL_1);
 
   for (int i=0;i<5;++i) {
-    pinMode(rows[i], OUTPUT);
-    pinMode(cols[i], OUTPUT);
+    pinMode(rows[i], OUTPUT|PULLUP);
+    pinMode(cols[i], OUTPUT|PULLDOWN);
     pinMode(adc[i], INPUT);
   }
 
@@ -68,18 +68,18 @@ void mute() {
 }
 
 void tristate(int pin) {
-  pinMode(pin,OUTPUT);
+  pinMode(pin,OUTPUT|PULLDOWN);
   digitalWrite(pin,LOW);
   pinMode(pin,INPUT);
 }
 
 void power(int pin) {
-  pinMode(pin,OUTPUT);
+  pinMode(pin,OUTPUT|PULLUP);
   digitalWrite(pin,HIGH);
 }
 
 void ground(int pin) {
-  pinMode(pin,OUTPUT);
+  pinMode(pin,OUTPUT|PULLDOWN);
   digitalWrite(pin,LOW);
 }
 
@@ -105,7 +105,7 @@ int sense(int led) {
 
   int value = analogRead(adc[row]);
 
-  //Serial.println(value);
+  Serial.println(value);
   return value < 500;
 }
 
@@ -144,7 +144,7 @@ void loop() {
   /* Serial.println(currentLed); */
 
   enableLed(currentLed);
-  delay(1);
+  delay(5);
   if (sense(currentLed)) {
     if (lastSeen != currentLed) {
       lastSeen = currentLed;
@@ -158,5 +158,5 @@ void loop() {
     mute();
   }
 
-  currentLed = (currentLed+1)%25;
+  currentLed = (currentLed+1)%10;
 }
\ No newline at end of file
diff --git a/wiring.rst.txt b/wiring.rst.txt
index 3acc7a3..662a063 100644
--- a/wiring.rst.txt
+++ b/wiring.rst.txt
@@ -42,7 +42,7 @@ so…
 
 row outputs: 05 23 19 18 26
 
-col outputs: 34 33 35 21 22
+col outputs: 07 33 08 21 22
 
 adc inputs: 02 04 tdi/12 27 tms/14 (adc2 2 0 5 7 6)
 
-- 
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