Gravity: Digital Weight Sensor

INTRODUCTION

This Electronic Arduino Weight Sensor is able to detect 1kg weight.  It based on HX711, a precision 24-bit analog-to-digital converter designed for weight scale and industrial control applications to interface directly with a bridge sensor. 

This Electronic arduino weight sensor lowers the cost of the electronic scale, and at the same time improving the performance and reliability. The interface of this sensor uses  KDRobotKit Gravity Interface. The output adopts compact terminal that makes the sensor easier to connect. It's the best choose for electronic enthusiast to do some tiny home scale.

 

Sensor connection Note：Red Line    -- E+

 

                                                Black Line  -- E-

 

                                                White Line  -- S-

 

                                                Green Line -- S+

 

 

SPECIFICATION

24-Bit Analog-to-Digital Converter for Weight Scales (HX711)

 

• Two selectable differential input channels


• On-chip active low noise PGA with selectable gain of 32,64 and 128


• On-chip power supply regulator for load-cell and ADC analog power supply


• On-chip oscillator requiring no external component with optional external crystal


• On-chip power-on-rest


• Simple digital control and serial interface: pin-driven controls, no programming needed


• Selectable 10SPS or 80SPS output data rate


• Simultaneous 50 and 60Hz supply rejection


• Supply Voltage: 2.6V~5.5V


• Current: <1.6mA


• Working temperature: -40~85°C


• 16 pin SOP-16 package

 

Weight Sensor Module

• Range: 1kg


• Excitation voltage: 5-15 V


• Output sensitivity: 1.0±0.15mV/V


• Synthetical error: 1 per thousand cent of full scale


• Zero shift: 0.05/0.03 （30min）%F.S


• Zero temperature shift: 0.05/0.03 %F.S/10°C


• Zero output: ±0.1mV/V 


• Input impedance: 1055±15 Ω


• Output impedance: 1000±5 Ω


• Overload capability: 200 %F.S 


• Output: Analog output


• Size: 33mm*38mm

 

PACKING LIST

• Weight sensor module          x1


• Weight sensor                 x1


• Sensor cable                  x2

 

DOCUMENTS

• WIKI (Weight Sensor Module SKU:SEN0160)                                              


• library                                           


• schematic                               


• datasheet


• 3D printed module design files

COUNTRIES WE SHIP TO

Cyprus, Malta, Grenada, Oman, Iraq, Iran, Bangladesh, Botswana, Burkina Faso, Central African Republic, Fiji, Venezuela, Mexico, Iceland, Qatar, Singapore, Algeria, Indonesia, Estonia, Honduras, Portugal, Libya, Congo, Comoros, Martinique, Turkey, Pakistan, Virgin Islands (UK), Japan, Serbia, Brazil, Uruguay, Korea, Republic of (South Korea), Haiti, Latvia, Samoa, Chile, New Zealand, Vietnam, Laos, Congo, Democratic Republic of (DRC), Croatia, China - Hong Kong / Macau, Russian Federation, Guinea-Bissau, Afghanistan, Czech Republic, Kuwait, Benin, Suriname, Myanmar/Burma, Saint Kitts and Nevis, Luxembourg, South Sudan, Montenegro, Brunei Darussalam, Italy, Tanzania, Burundi, Korea, Democratic Republic of (North Korea), United States of America (USA), Spain, Yemen, Monaco, Moldova, Republic of, Azerbaijan, Saint Vincent and the Grenadines, Armenia, Israel and the Occupied Territories, Slovak Republic (Slovakia), Panama, Ecuador, Guadeloupe, Kosovo, Egypt, Lesotho, Liechtenstein, Bosnia & Herzegovina, Sao Tome and Principe, Peru, Canada, Mayotte, Niger, Thailand, Bulgaria, Mongolia, Philippines, Liberia, Uzbekistan, Gambia, Switzerland, Zambia, Tunisia, Somalia, Malaysia, Austria, Guatemala, Great Britain, Syria, Hungary, Ukraine, Gabon, Belarus, Reunion, Turks & Caicos Islands, Kyrgyz Republic (Kyrgyzstan), Bahamas, Colombia, Georgia, Denmark, Mauritius, Virgin Islands (US), Barbados, Anguilla, Sierra Leone, Lebanon, Belgium, Montserrat, Malawi, India, Nigeria, Macedonia, Republic of, Kazakhstan, Saint Lucia, Papua New Guinea, Cuba, Timor Leste, Bhutan, Togo, Kenya, Bolivia, Nepal, Romania, Pacific Islands, Uganda, Dominican Republic, Cambodia, Poland, Chad, Solomon Islands, Andorra, Morocco, Angola, Jamaica, Norway, Mali, Cape Verde, Cameroon, Ivory Coast (Cote d'Ivoire), Eritrea, Nicaragua, Maldives, Ghana, Guinea, Trinidad & Tobago, Finland, South Africa, Greece, El Salvador, Antigua & Barbuda, Saudi Arabia, Argentina, Germany, Bermuda, France, Dominica, Sudan, China, Senegal, Ethiopia, Madagascar, Zimbabwe, Mauritania, Tajikistan, Rwanda, Swaziland, Cayman Islands, Netherlands, Bahrain, Costa Rica, United Arab Emirates, Mozambique, Australia, Albania, Puerto Rico, Djibouti, Seychelles, Sweden, Paraguay, Slovenia, Sri Lanka, Lithuania, French Guiana, Belize, Namibia, Equatorial Guinea, Jordan, Turkmenistan, Guyana

https://kdrobotkit.com/product/gravity-digital-weight-sensor/