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Hi sir, KS220-S is DC12V, pls check link : www.aliexpress.com/item/3256806432688157.html?pdp_npi=4%40dis%21USD%21US%20%247.50%21US%20%247.05%21%21%217.50%217.05%21%40213ca05117351999642797636efb34%2112000037841447938%21sh%21US%21229343960%21X&spm=a2g0o.store_pc_allItems_or_groupList.new_all_items_2007599232058.1005006619002909

Hi dear you can download user manual from here: www.dropbox.com/sh/buysgr2aeutuub3/AADsvupiGseFm-6IowMBWGCOa?dl=0 You can purchase from this link: www.aliexpress.com/item/3256807866985670.html?pdp_npi=4%40dis%21USD%21US%20%2411.90%21US%20%2411.90%21%21%2111.90%2111.90%21%402150af0417333778435504193e796e%2112000043457340918%21sh%21US%21229343960%21X&spm=a2g0o.store_pc_allItems_or_groupList.new_all_items_2007599232058.1005008053300422

for K215-V1.3, you can turn off the LED.

It around 3USD in my country (Vietnam)

Hi you can check GM67 user manual page 56, you can try to send START_DECODE command.

Hi sir, it is TTL232 interface.

Hi you can long press the SET button to reset control board. But can not support delete single fingerprint. Thanks.

Hi dear. sorry for we don't have samples for arduino. You can search some info in Google, we have some customers upload some article here. Hope it can help you. Thanks!

Hi sir, for arduino, it can support but need to develop the ardiono by yourself. Thanks.

Here is the sdk files download link, pls check it freely. www.dropbox.com/sh/pznvlzx8qx5nfr3/AABpzhSyjqH0qWNYgMvxqAA9a?dl=0

Thanks for your support!🥰

Hi dear, it can support connect to Ardino Android Windows Linux .net and so on. You can download barcode scanner user manual from this website link: www.dropbox.com/sh/buysgr2aeutuub3/AADsvupiGseFm-6IowMBWGCOa?dl=0 Here is the sdk files download link, pls check it freely. www.dropbox.com/sh/pznvlzx8qx5nfr3/AABpzhSyjqH0qWNYgMvxqAA9a?dl=0

Hi dear, it can support register 120 pieces fingerprint.

Hi dear, the barcode scanner support work with arduino, windows, Android and Linux and so on, but need to develop it by yourself. Thanks.

You can download barcode scanner user manual from this website link: www.dropbox.com/sh/buysgr2aeutuub3/AADsvupiGseFm-6IowMBWGCOa?dl=0

Hi sir, only have to remove the buzzer.

You can purchase from this link, this is KL261+R558 link: www.aliexpress.com/item/3256804172414995.html?gps-id=pcStoreLeaderboard&scm=1007.22922.271278.0&scm_id=1007.22922.271278.0&scm-url=1007.22922.271278.0&pvid=177e20c6-ec5d-4b6c-b17f-2e25d2695799&_t=gps-id:pcStoreLeaderboard,scm-url:1007.22922.271278.0,pvid:177e20c6-ec5d-4b6c-b17f-2e25d2695799,tpp_buckets:668%232846%238112%231997&pdp_npi=4%40dis%21USD%2113.50%2112.82%21%21%2113.50%21%21%40212aa2ac17019142689027789ef5b1%2112000029662517733%21rec%21US%21229343960%21AB&spm=a2g0o.store_pc_home.smartLeaderboard_6001946854689.1005004358729747

Sorry dear, we don't have example code for arduino. It needs to develop by yourself

yes

Hi sir, support Linux Android Arduino and so on, but needs to develop by yourself.

Hi sir, the GM861 connector is SH 1.0mm 6pin. If need used in lower light conditions, we suggest you can make a external light.

Here is the sdk files download link, pls check it freely. SDK files：www.dropbox.com/sh/pznvlzx8qx5nfr3/AABpzhSyjqH0qWNYgMvxqAA9a?dl=0

if you are interested in this products, you can purchase from here: www.aliexpress.us/item/3256805642153051.html?spm=a2g0o.store_pc_newArrival.8148356.1.780819086KIivw&pdp_npi=3%40dis%21USD%21US%20%247.60%21US%20%247.60%21%21%21%21%21%402132f35216910482418282171e60c0%2112000034498053398%21sh%21US%21205734864&gatewayAdapt=glo2usa

Hi it don't have app, just a control board module。 High level output

Hi the default output is USB, pls change the output to serial port.

@@hzgrowokee, but did barcode GM66 is can using with arduino wemos d1r1?

Hi GM66 support work with arduino but needs to develop by yourself. Thanks

Hi Luke, our sales already contact with you. Thanks.

It have self-locking mode, ignition mode and jod mode, you can chose one for relay 1 or relay 2

@@hzgrow Real Self Locking ?? Without Adjuster Delay Timer ??

@@satria120bekasitimur9 Yes, you can chose relay mode according to operation tips

Our scanner both can support work with Arduino, but it needs to develop the software by yourself.You can download barcode scanner user manual from this website link: www.dropbox.com/sh/buysgr2aeutuub3/AADsvupiGseFm-6IowMBWGCOa?dl=0

We have customer used it for car and motorcycle.

@@hzgrow the car battery voltage is 12 volts, do I have to do something else to get this product work propertly? Or I just plug it in the car

@@b4dk1n6 This is DC30-75V. If only have DC12V, you can check our K215+R503: www.aliexpress.us/item/2251832873904705.html?spm=a2g0o.store_pc_allProduct.8148356.3.2e6b9ab30ErxHv&pdp_npi=3%40dis%21USD%21US%20%2422.80%21US%20%2421.20%21%21%21%21%21%40213f990c16862923947032977ee841%2167577472077%21sh%21US%21229343960&gatewayAdapt=glo2usa

@@hzgrow I think K215 only have one relay output, i'm looking for something like this Short press activates relay 1 (on self-locking mode) Long press activates relay 2 (on ignition mode) BUT only if relay 1 is activated Short press again deactivates relay 1 I'm planning to use it on a car or a motorcycle (12V) GROW K220+R503 DC10-24V has the above functionality? Regards

@@b4dk1n6 Hi sir, you can check K220 is need two relays. And K220 have self-locking mode and ignition mode.www.aliexpress.com/item/3256802175606496.html?spm=a2g0o.store_pc_allProduct.8148356.1.6ba34bb8rxyz18&pdp_npi=3%40dis%21USD%21US%20%2423.99%21US%20%2422.79%21%21%21%21%21%402132a25516934501365073723ec52c%2112000020843651038%21sh%21US%21229343960