From 1718657829c332198cbff56428f8195dcbec8581 Mon Sep 17 00:00:00 2001
From: recrof <recrof@gmail.com>
Date: Wed, 9 Apr 2025 13:07:58 +0200
Subject: [PATCH] lilygo t-echo: move init stuff to variant.cpp, disable gps to
 conserve battery

---
 src/helpers/nrf52/TechoBoard.cpp | 13 -------------
 variants/techo/variant.cpp       | 22 +++++++++++++++-------
 variants/techo/variant.h         | 23 ++++++++++++++++++++++-
 3 files changed, 37 insertions(+), 21 deletions(-)

diff --git a/src/helpers/nrf52/TechoBoard.cpp b/src/helpers/nrf52/TechoBoard.cpp
index 13a250e6..dee14688 100644
--- a/src/helpers/nrf52/TechoBoard.cpp
+++ b/src/helpers/nrf52/TechoBoard.cpp
@@ -24,19 +24,6 @@ void TechoBoard::begin() {
   // for future use, sub-classes SHOULD call this from their begin()
   startup_reason = BD_STARTUP_NORMAL;
 
-  delay(200);
-  pinMode(PIN_PWR_EN, OUTPUT);
-  digitalWrite(PIN_PWR_EN, HIGH);
-  pinMode(PIN_BUTTON1, INPUT_PULLUP);
-  pinMode(PIN_BUTTON2, INPUT_PULLUP);
-  pinMode(LED_RED, OUTPUT);
-  pinMode(LED_GREEN, OUTPUT);
-  pinMode(LED_BLUE, OUTPUT);
-  delay(200);
-
-  pinMode(PIN_TXCO, OUTPUT);
-  digitalWrite(PIN_TXCO, HIGH);
-
   Wire.begin();
 
   pinMode(SX126X_POWER_EN, OUTPUT);
diff --git a/variants/techo/variant.cpp b/variants/techo/variant.cpp
index 3d3dc9c1..7b7bee95 100644
--- a/variants/techo/variant.cpp
+++ b/variants/techo/variant.cpp
@@ -9,14 +9,22 @@ const uint32_t g_ADigitalPinMap[] = {
   40, 41, 42, 43, 44, 45, 46, 47
 };
 
-void initVariant()
-{
+void initVariant() {
+  pinMode(PIN_PWR_EN, OUTPUT);
+  digitalWrite(PIN_PWR_EN, HIGH);
+
+  pinMode(PIN_BUTTON1, INPUT_PULLUP);
+  pinMode(PIN_BUTTON2, INPUT_PULLUP);
+
   pinMode(LED_RED, OUTPUT);
-  ledOff(LED_RED);
-
   pinMode(LED_GREEN, OUTPUT);
-  ledOff(LED_GREEN);
-
   pinMode(LED_BLUE, OUTPUT);
-  ledOff(LED_BLUE);
+  digitalWrite(LED_BLUE, HIGH);
+
+  pinMode(PIN_TXCO, OUTPUT);
+  digitalWrite(PIN_TXCO, HIGH);
+
+  // shutdown gps
+  pinMode(PIN_GPS_STANDBY, OUTPUT);
+  digitalWrite(PIN_GPS_STANDBY, LOW);
 }
diff --git a/variants/techo/variant.h b/variants/techo/variant.h
index 8fcb765e..e3022adc 100644
--- a/variants/techo/variant.h
+++ b/variants/techo/variant.h
@@ -42,7 +42,7 @@
 
 #define PIN_SERIAL1_RX          (41) // GPS TX
 #define PIN_SERIAL1_TX          (40) // GPS RX
-
+#define PIN_GPS_STANDBY         (34)
 ////////////////////////////////////////////////////////////////////////////////
 // I2C pin definition
 
@@ -100,3 +100,24 @@
 #define PIN_SPI1_MISO           (39)
 #define PIN_SPI1_MOSI           (29)
 #define PIN_SPI1_SCK            (31)
+
+////////////////////////////////////////////////////////////////////////////////
+// Display
+
+#define DISP_MISO               (38)
+#define DISP_MOSI               (29)
+#define DISP_SCLK               (31)
+#define DISP_CS                 (30)
+#define DISP_DC                 (28)
+#define DISP_RST                (2)
+#define DISP_BUSY               (3)
+#define DISP_BACKLIGHT          (43)
+
+////////////////////////////////////////////////////////////////////////////////
+// GPS
+
+#define PIN_GPS_RX              (41)
+#define PIN_GPS_TX              (40)
+#define PIN_GPS_WAKEUP          (34)
+#define PIN_GPS_RESET           (37)
+#define PIN_GPS_PPS             (36)