From 9758fc82fb45d9ba1a185e057d4bdf0d1fb704ee Mon Sep 17 00:00:00 2001
From: vany5921 <908744431@qq.com>
Date: Mon, 21 Sep 2020 16:36:07 +0800
Subject: [PATCH] Update vmeter.md

---
 docs/zh_CN/unit/vmeter.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/zh_CN/unit/vmeter.md b/docs/zh_CN/unit/vmeter.md
index f7523d60..30683f81 100644
--- a/docs/zh_CN/unit/vmeter.md
+++ b/docs/zh_CN/unit/vmeter.md
@@ -158,7 +158,7 @@ bool Voltmeter::saveCalibration2EEPROM(voltmeterGain_t gain, int16_t hope, int16
 
 <script>
 
-   var purchase_link = '';
+   var purchase_link = 'https://m5stack.com/collections/m5-unit/products/voltmeter-unit-ads1115';
 
    anchor_search(purchase_link);
    scrollFunc();