1pc Microcontroller serial / TTL level UART turn RS-485

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 (Microcontroller serial / TTL level) UART turn RS-485 signal conversion board


A, Size: Length 36mm width 22mm height 18mm
Second, the main chip: MAX485 communications chips
Third, the working voltage: DC 5V
Four characteristics:
1, the circuit is simple and practical, simple wiring.
2, 485 module is connected at one end with the other end can be directly connected to the micro.
3, you can communicate with the microcontroller chip.
4, UART with 485 devices.
5, the circuit compact, easy fixed installation.
6, the maximum communication distance of 1200 m.
7, operating temperature -20 ° ~ 50 °.
8, RS-485 data transfer rate of up to 10Mbps
9, RS-485 maximum communication distance of approximately 1200m, the maximum transfer rate of 10Mb / S, transmission rate and transmission distance is inversely proportional to 100Kb / S transfer rate, we can achieve the maximum communication distance, if you need more transmission long distance, you need to add 485 repeater. RS-485 bus Average maximum support 32 nodes, 485 if you use a special chip that can reach 128 or 256 nodes, the biggest can support up to 400 nodes.

Welcome to our shop, enjoy the shipping here, you can contact with me freely if any question, usually we will send datasheet,code via email . hope to do business with you




we only accept the payment by credit card,western union.
We apologize that we cannot accept other payment methods, such as cheque or postal orders .
  1. We Ship to Worldwide, but Italy, Nigeria, Brazil will take long delivery time .
  2. Before buying, Please make sure your address is correct. Or not, please correct it before payment
  3. Ship to worldwide from Hong Kong within 12-24 hours after payment completed received, and will give you the tracking number asap. sometimes we will send it by flat post air mail if just one low price order.Hope you understand.
  4. we advise shipping by DHL or EMS,and we have gave a discount for you,you can received it in 4-9 business days.
  5. it takes about 15-30days usually if shipping by CHina/Hong Kong post air mail
the feedback is very important for us, pls leave me a 5 stars feedback if you are satisfied with our service and our items,or pls contact with me if there are some problem with our items.we will solve it asap.
Warranty and Return:
  1. 12-months Warranty for defective items (excluding items damaged and/or misused after receipt).
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  1. Refund or replacement request is available only the requests within 1 week after parcel received & returning the item as the same condition as received.
  2. Please contact us to request a return authorization. Your name, auction number, and reason for return should be included in the email. All items returned must contain all original packaging materials.
  3. Please repack the item carefully. Items returned will be tested and a new replacement will be shipped to the buyer immediately when found defective. In the event that a suitable replacement is not available then a refund will be issued. Shipping, handling and insurance fees are non refundable.
  4. Return shipping is to be paid by the Buyer.
we have much more products, pls contact us if you need.welcome to wholesale. MUCH THANKS!!
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Power supply and power amplifier board split using the compact design, can be loaded 43mm slim chassis, each power supply board and the amplifier board contains all one (without pillars). Amplifier board with two TDA7293, which can be accessed as OCL (dual-channel) or BTL (mono) modes, BTL connection output power is doubled. Board components used are carefully selected, the filter uses four small 10000U/50V NOVER AUDIO gold capacitor. 35A high current rectifier bridge, amplifier board for a long time to meet the full load. Resistors used in all 1% metal film resistors, high-quality small sealed potentiometer. Other capacitor selection WIMA, Philips, King Kong, Nishi Kang and other famous brands. Circuit board using double-sided blue plate, nice, reasonable layout, signal to noise ratio. Power board Size: 109mm / width 71mm / high 38mm (top to the bottom of the board capacitance, not including components feet) amplifier board Dimensions: Length 117mm / Width 37mm
The amplifier board kit contains the necessary components (excluding pillars screws), then finished plate shipments into OCL default connection,
if you need to BTL connection, please leave a message.

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Shipping CompanyShipping CostEstimated Delivery Time
DHL3 - 7 days
UPS Expedited3 - 7 days
EMS5 - 14 days
Post Air MailFree Shipping15 - 45 days
Return PolicyIf the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller.

N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.
Seller ServiceOn-time DeliveryIf you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe).