tag:blogger.com,1999:blog-4702287955799719958.post8166958101605290991..comments2023-06-03T09:59:00.759-04:00Comments on Arduino Your Home & Environment: Producing DTMF TonesUnknownnoreply@blogger.comBlogger5125tag:blogger.com,1999:blog-4702287955799719958.post-14997442672656098122018-01-29T18:50:34.887-05:002018-01-29T18:50:34.887-05:00Hi it worked for me, but I have strange like chirp...Hi it worked for me, but I have strange like chirping noise, why is that? Thanks :)Anonymoushttps://www.blogger.com/profile/12923917284009879444noreply@blogger.comtag:blogger.com,1999:blog-4702287955799719958.post-58142208992037212572017-12-31T21:10:50.419-05:002017-12-31T21:10:50.419-05:00Audio output is low, should run it through a ampli...Audio output is low, should run it through a amplified speaker.KK4HFJhttps://www.blogger.com/profile/17495516851959991808noreply@blogger.comtag:blogger.com,1999:blog-4702287955799719958.post-6543314155992451672017-12-30T14:01:08.465-05:002017-12-30T14:01:08.465-05:00Im using arduino uno and ht9200a not work. no soun...Im using arduino uno and ht9200a not work. no soundAnonymoushttps://www.blogger.com/profile/02119713758717390394noreply@blogger.comtag:blogger.com,1999:blog-4702287955799719958.post-23358161101129485502017-10-27T07:04:25.362-04:002017-10-27T07:04:25.362-04:00The contents of the included file, HT9200.h, are p...The contents of the included file, HT9200.h, are posted in the link. That is the "library". You have to create the file with the below contents as mentioned in the forum:<br /><br />/* HT9200.h defines for HT9200 DTMF chip in serial mode */<br /><br />#define DTMF_OFF 24 // SB 31 but next cmd will be lost - a not used cmnd# works fine<br />#define STAR 11<br />#define POUND 12<br />#define A_KEY 13<br />#define B_KEY 14<br />#define C_KEY 15<br />#define D_KEY 0<br /><br />// pure frequencies that can be made by the chip . . .<br />#define HZ_697 16<br />#define HZ_770 17<br />#define HZ_852 18<br />#define HZ_941 19<br />#define HZ_1209 20<br />#define HZ_1336 21<br />#define HZ_1477 22<br />#define HZ_1633 23KK4HFJhttps://www.blogger.com/profile/17495516851959991808noreply@blogger.comtag:blogger.com,1999:blog-4702287955799719958.post-10154101322001690902017-10-27T03:26:22.661-04:002017-10-27T03:26:22.661-04:00fatal error: HT9200.h: No such file or directory
...fatal error: HT9200.h: No such file or directory<br /><br /> #include // defines for HT9200 DTMF chip<br /><br />It shows me this error every time I try to compile this code.<br />if it is due to header file. where can i find this file?<br />i downloaded library but still there is no header file with it.Anonymoushttps://www.blogger.com/profile/09693302144184358546noreply@blogger.com