From fa4cc5d3f2a049dbc4a8970b2b3fea8f5474f565 Mon Sep 17 00:00:00 2001
From: Zac Wilson <zac@zacjw.com>
Date: Mon, 15 Dec 2025 16:19:30 +0000
Subject: [PATCH] Started deep sleep command

---
 src/lib.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/lib.rs b/src/lib.rs
index 8ef85bb..4cb890e 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -155,4 +155,14 @@ impl<BusyPin: InputPin, ResetPin: OutputPin, DcPin: OutputPin, Spi: SpiDevice, D
         self.delay.delay_ms(1);
         self.wait_for_display();
     }
+
+    /// Puts the display into deep sleep mode which effectively deinitialises the display controller.
+    /// 
+    /// Reinitialising the display with [EPaperDisplay::new] is sufficient to wake the display back up.
+    /// 
+    /// All display controller registers will be reset by this process.
+    pub fn deep_sleep(mut self) {
+        self.write_command(0x07);
+        self.write_data(0xA5);
+    }
 }