From d56a8d8a0d687f029ef42cd1ed99e8593f5ec73d Mon Sep 17 00:00:00 2001
From: guowenxue <guowenxue@gmail.com>
Date: Sun, 10 Apr 2022 16:07:15 +0800
Subject: [PATCH] add cjson  build shell script

---
 modules/c/ds18b20.c |   14 +++++++++++++-
 1 files changed, 13 insertions(+), 1 deletions(-)

diff --git a/modules/c/ds18b20.c b/modules/c/ds18b20.c
index 43da548..29fbdc3 100644
--- a/modules/c/ds18b20.c
+++ b/modules/c/ds18b20.c
@@ -8,9 +8,21 @@
  *        Version:  1.0.0(2018/10/14)
  *         Author:  Guo Wenxue <guowenxue@gmail.com>
  *      ChangeLog:  1, Release initial version on "2018/10/14 12:13:26"
- *                 
+ *
+ *
+ * Pin connection:
+ *
+ *          vcc   --- #Pin1 ( 3.3v )
+ *          DQ    --- #Pin7 (BCM GPIO4)
+ *          GND   --- #Pin9 ( GND  )
+ *
+ * /boot/config.txt:
+ *
+ *          dtoverlay=w1-gpio-pullup,gpiopin=4
+ *
  ********************************************************************************/
 
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>

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