I have used these in the past with great success in close range. I have recently deployed a set of these for a weather station. Transmit distance in my application is 200+ feet, through three walls of the house without issue. So far it has worked down to 30 degF. I followed the setup instructions found at Seed Studio on this device. When setting up the device, type in the command verbatim as found in the data sheet, including the + sign. Additionally, these devices will not tolerate being wired incorrectly. I accidentally applied +5 volts to a Rx or Tx pin, and that killed it. Double check wiring before applying power!

I have used these in the past with great success in close range. I have recently deployed a set of these for a weather station. Transmit distance in my application is 200+ feet, through three walls of the house without issue. So far it has worked down to 30 degF. I followed the setup instructions found at Seed Studio on this device. When setting up the device, type in the command verbatim as found in the data sheet, including the + sign. Additionally, these devices will not tolerate being wired incorrectly. I accidentally applied +5 volts to a Rx or Tx pin, and that killed it. Double check wiring before applying power!

I have used these in the past with great success in close range. I have recently deployed a set of these for a weather station. Transmit distance in my application is 200+ feet, through three walls of the house without issue. So far it has worked down to 30 degF. I followed the setup instructions found at Seed Studio on this device. When setting up the device, type in the command verbatim as found in the data sheet, including the + sign. Additionally, these devices will not tolerate being wired incorrectly. I accidentally applied +5 volts to a Rx or Tx pin, and that killed it. Double check wiring before applying power!

I waited for 28 days for these modules to arrive in South Africa. I managed to get some info on the modules on YouTube, and links to files (https://www.youtube.com/watch?v=DGRPqeacJns). I have tested a pair of these at the lowest power level and 9600baud, and was able to get range of about 30m (indoors). Will still test further when I get time. One thing you can look out for: If you are using PUTTY for your terminal session, and the device is in "setting parameters state", i.e. 'SET' pin in 'LOW' state, the command to send is: 'AT', and PUTTY sends each character as you type it, so the module will return 'ERROR' because it does not recognize the 'A' as a command. Use hyperterminal or arduino's serial monitor instead! You're welcome! Great product, great value for money, relatively easy to use!

I waited for 28 days for these modules to arrive in South Africa. I managed to get some info on the modules on YouTube, and links to files (https://www.youtube.com/watch?v=DGRPqeacJns). I have tested a pair of these at the lowest power level and 9600baud, and was able to get range of about 30m (indoors). Will still test further when I get time. One thing you can look out for: If you are using PUTTY for your terminal session, and the device is in "setting parameters state", i.e. 'SET' pin in 'LOW' state, the command to send is: 'AT', and PUTTY sends each character as you type it, so the module will return 'ERROR' because it does not recognize the 'A' as a command. Use hyperterminal or arduino's serial monitor instead! You're welcome! Great product, great value for money, relatively easy to use!

I waited for 28 days for these modules to arrive in South Africa. I managed to get some info on the modules on YouTube, and links to files (https://www.youtube.com/watch?v=DGRPqeacJns). I have tested a pair of these at the lowest power level and 9600baud, and was able to get range of about 30m (indoors). Will still test further when I get time. One thing you can look out for: If you are using PUTTY for your terminal session, and the device is in "setting parameters state", i.e. 'SET' pin in 'LOW' state, the command to send is: 'AT', and PUTTY sends each character as you type it, so the module will return 'ERROR' because it does not recognize the 'A' as a command. Use hyperterminal or arduino's serial monitor instead! You're welcome! Great product, great value for money, relatively easy to use!

Attached it to adafruits FTDI friend, and works at low speed right out of the box

Attached it to adafruits FTDI friend, and works at low speed right out of the box

Attached it to adafruits FTDI friend, and works at low speed right out of the box

I already have bought ~20 modules of them because the are really good. At my actual order, i got modules with firmware HC-12_V2.4 From my old orders i have modules with firmware HC-12_V2.3 It seems there is no good connection between modules with different firmware. Is there any way to up/downgrade the firrmware?

I already have bought ~20 modules of them because the are really good. At my actual order, i got modules with firmware HC-12_V2.4 From my old orders i have modules with firmware HC-12_V2.3 It seems there is no good connection between modules with different firmware. Is there any way to up/downgrade the firrmware?

I already have bought ~20 modules of them because the are really good. At my actual order, i got modules with firmware HC-12_V2.4 From my old orders i have modules with firmware HC-12_V2.3 It seems there is no good connection between modules with different firmware. Is there any way to up/downgrade the firrmware?

Nagyon bejött. Városi, rádiózajos környezetben több falon át küldött adatokat nagyon megbízhatóan. Távolság próbát még nem csináltam vele, de nem tartom kizártnak hogy hozza az 1km-t is... Marha egyszerű használni, tényleg csak RX, TX-re kell kötni, és onnantól mehet a kommunikáció, nem kell hozzá semmi. https://www.instagram.com/p/BN_WHV4gzRx/?taken-by=outstanda

Nagyon bejött. Városi, rádiózajos környezetben több falon át küldött adatokat nagyon megbízhatóan. Távolság próbát még nem csináltam vele, de nem tartom kizártnak hogy hozza az 1km-t is... Marha egyszerű használni, tényleg csak RX, TX-re kell kötni, és onnantól mehet a kommunikáció, nem kell hozzá semmi. https://www.instagram.com/p/BN_WHV4gzRx/?taken-by=outstanda

Nagyon bejött. Városi, rádiózajos környezetben több falon át küldött adatokat nagyon megbízhatóan. Távolság próbát még nem csináltam vele, de nem tartom kizártnak hogy hozza az 1km-t is... Marha egyszerű használni, tényleg csak RX, TX-re kell kötni, és onnantól mehet a kommunikáció, nem kell hozzá semmi. https://www.instagram.com/p/BN_WHV4gzRx/?taken-by=outstanda

Μίξερ με τη διεύθυνσή μου, αλλά η Banggood τα κατάφερε και παρέδωσε την παραγγελία μου. Εξαιρετική εξυπηρέτηση.

A mix up with my address but Banggood came through and delivered my order. Great Service.

Μίξερ με τη διεύθυνσή μου, αλλά η Banggood τα κατάφερε και παρέδωσε την παραγγελία μου. Εξαιρετική εξυπηρέτηση.

Αυτά είναι τα αυθεντικά μοντέλα και όχι τα "πλαστά", λειτουργούν τέλεια. Έχω μια εμβέλεια 160 μέτρων στο κέντρο, από ένα δωμάτιο στον πρώτο όροφο χρησιμοποιώντας τις κεραίες που έρχονταν μαζί του.

Ce sont les modèles originaux et pas des "fakes"; ils fonctionnent parfaitement. j'ai obtenu une portée de 160 mètres en ville, à partir d'une pièce au premier étage en utilisant les antennes "ressort" livrées avec.

Αυτά είναι τα αυθεντικά μοντέλα και όχι τα "πλαστά", λειτουργούν τέλεια. Έχω μια εμβέλεια 160 μέτρων στο κέντρο, από ένα δωμάτιο στον πρώτο όροφο χρησιμοποιώντας τις κεραίες που έρχονταν μαζί του.

Είναι βολικό να τα έχεις και δουλεύουν καλά.

Handy to have around and they work well.

Είναι βολικό να τα έχεις και δουλεύουν καλά.

Γρήγορη ναυτιλία

Fast shipping

Γρήγορη ναυτιλία

Ωραία

good

Ωραία