Single Way Relay Module Delay Power-off Trigger Delay Cycle Timing Circuit Switch SKU:200350

I am having the same problem as this I found on your site for this product but I can’t find the answer. My application requires I am able to use UART to change the timer settings.
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<p class=”lead wk-margin-bottom”>Help with UART control</p>
<p class=”question_details”>I am unable to set the OP timer to four-digits using UART. Each time I try, the device reports “FAIL”. I can use the following commands successfully: OP:1 OP:11 OP:111 But all of the following commands “FAIL”. OP:1111 OP:111.1 OP:1.1.1.1 How do I get it to work? Do you have any examples? Thank you!</p>

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<p class=”wk-margin-top”>DROK <span class=”question_date”>answered [at] 2020-01-12 09:19:42</span></p>
<p class=”question”>Hello We have received your message through Facebook, please check our response. Best regards.</p>

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