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5Pcs Speed Measuring Sensor Switch Counter Motor Test Groove Coupler Module Geekcreit for Arduino - products that work with official Arduino boards

4.4652

₭65002.60 / ₭79351.00

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₭31523.00 / ₭79351.00

Shipping to: United States | Express delivery: 7-12 business days | Standard delivery: 15-25 business days

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ຊື້ດຽວນີ້ ເພີ່ມເຂົ້າກະຕ່າ

ບັດເຄຣດິດ ຫຼື ບັດເດບິດ

ຮັບປະກັນຄວາມປອດໄພໃນການຊຳລະ

ຂອງຂວັນຟຣີ

ຂອງຂວັນຟຣີພ້ອມທຸກການຊື້

ນະໂຍບາຍການຈັດສົ່ງ

ຈັດສົ່ງຟຣີສຳລັບຄໍາສັ່ງທີ່ມີມູນຄ່າເກີນ $9.9

ນະໂຍບາຍການຄືນ

ສາມາດຄືນສິນຄ້າໄດ້ພາຍໃນ 40 ວັນນັບຈາກວັນທີ່ໄດ້ຮັບສິນຄ້າ. ສິນຄ້າທີ່ປັບແຕ່ງບໍ່ສາມາດຄືນຫຼືແລກໄດ້. ສິນຄ້າທີ່ຊື້ດ້ວຍບັດຂອງຂວັນອີເມວສາມາດແລກໄດ້ເທົ່ານັ້ນ; ບໍ່ສາມາດຄືນເງິນໄດ້.

ຂອງຂວັນຟຣີ

ຍິນດີຕ້ອນຮັບສູ່ Roymall, ເວັບໄຊທ໌ມືອາຊີບຂອງທ່ານສຳລັບການຊື້ຂອງຂວັນຫ້າງສັງຄົມຊັ້ນສູງ. ພວກເຮົາໃຫ້ຄ່າສູງ ແລະ ຂອບໃຈການສະໜັບສະໜູນຂອງທ່ານ, ແລະ ພວກເຮົາຕ້ອງການສະແດງຄວາມຂອບໃຈໂດຍການເພີ່ມຄວາມຕື່ນເຕັ້ນເພີ່ມເຕີມໃຫ້ກັບການຊື້ຂອງທ່ານ. ເມື່ອທ່ານຊື້ກັບພວກເຮົາ, ທ່ານບໍ່ພຽງແຕ່ໄດ້ຮັບຜະລິດຕະພັນຄຸນນະພາບສູງທີ່ຊ່ວຍປັບປຸງຊີວິດການເປັນຢູ່ຂອງທ່ານ, ແຕ່ທ່ານຍັງຈະໄດ້ຮັບຂອງຂວັນຟຣີທີ່ເປັນເອກະລັກກັບທຸກຄຳສັ່ງທີ່ທ່ານວາງ. ພ້ອມທີ່ຈະສຳຫຼວດຄວາມຄັກແລະຊອກຫາຂອງຂວັນທີ່ເຫມາະສົມທີ່ສຸດຂອງທ່ານບໍ? ສຳຫຼວດການເລືອກຂອງພວກເຮົາຂອງຜະລິດຕະພັນຫ້າງສັງຄົມຊັ້ນສູງ, ວາງຄຳສັ່ງຂອງທ່ານ, ແລະ ລໍຖ້າຄວາມຕື່ນເຕັ້ນຂອງຂອງຂວັນຟຣີຂອງທ່ານທີ່ຈະມາພ້ອມກັບການຊື້ຂອງທ່ານ.

ນະໂຍບາຍການຈັດສົ່ງ

ພວກເຮົາຈະພະຍາຍາມຈັດສົ່ງສິນຄ້າໃຫ້ທ່ານຫຼັງຈາກໄດ້ຮັບຄຳສັ່ງຂອງທ່ານ ແລະ ໃຫ້ແນ່ໃຈວ່າພວກມັນຈະມາຮອດຢ່າງປອດໄພ. ລາຍລະອຽດການຈັດສົ່ງຈະຖືກລະບຸໃນອີເມວຢືນຢັນຂອງທ່ານ.ໃນສ່ວນໃຫຍ່, ຄຳສັ່ງຈະຖືກດຳເນີນການພາຍໃນ 2 ວັນ.ໃນສະຖານະການພິເສດ, ມັນຈະຖືກລັອກຄືດັ່ງນີ້: ເມື່ອທ່ານວາງຄຳສັ່ງໃນວັນເສົາ, ວັນອາທິດ ຫຼື ວັນພັກລັດຖະການ, ມັນຈະຖືກລັອກຄື 2 ວັນ..ປົກກະຕິ, ມັນຕ້ອງການ 5-7 ວັນເຮັດວຽກ (ຈັນຫາສຸກ) ໂດຍບໍ່ຖືກຜົນກະທົບຈາກການລັອກຂອງການບິນຫຼື ປັດໄຈສະພາບແວດລ້ອມອື່ນໆ..ເນື່ອງຈາກບໍລິການຈັດສົ່ງຂອງພວກເຮົາແມ່ນທົ່ວໂລກ, ເວລາຈັດສົ່ງຈະຂຶ້ນກັບສະຖານທີ່ຂອງທ່ານ, ສະນັ້ນມັນອາດຈະຕ້ອງໃຊ້ເວລາບາງຄັ້ງ ແລະ ກະລຸນາລໍຖ້າຢ່າງອົດທົນຖ້າທ່ານຢູ່ໃນເຂດຫ່າງໄກສອກຫຼີກ ຫຼື ປະເທດ.

1. ນະໂຍບາຍການຄືນ & ແລກ

ພວກເຮົາຍອມຮັບສິນຄ້າທີ່ຊື້ຈາກ roymall.com ເທົ່ານັ້ນ. ຖ້າທ່ານຊື້ຈາກຕົວແຈກຢາຍທ້ອງຖິ່ນຂອງພວກເຮົາຫຼື ຮ້ານຄ້າອື່ນໆ, ທ່ານບໍ່ສາມາດຄືນມັນທີ່ພວກເຮົາໄດ້. ສິນຄ້າຂາຍສຸດທ້າຍຫຼື ຂອງຂວັນຟຣີບໍ່ສາມາດຍອມຮັບສຳລັບການຄືນ. ເພື່ອມີສິດໄດ້ຮັບການຄືນ, ສິນຄ້າຂອງທ່ານຕ້ອງບໍ່ເຄີຍໃຊ້ ແລະ ຢູ່ໃນສະພາບດຽວກັນກັບທີ່ທ່ານໄດ້ຮັບມັນ. ມັນຕ້ອງຢູ່ໃນບັລບັ້ງດັ້ງເດີມ.ຫຼັງຈາກໄດ້ຮັບຄຳແນະນຳການຄືນຈາກພວກເຮົາ, ກະລຸນາຫຸ້ມຫໍ່ສິນຄ້າທີ່ຈະຄືນຂອງທ່ານ ແລະ ສົ່ງແພັກເກົ່າຂອງທ່ານທີ່ຫ້ອງການໄປສະນີທ້ອງຖິ່ນຫຼື ຜູ້ຈັດສົ່ງອື່ນ.
ພວກເຮົາຈະດຳເນີນການຄືນຫຼື ແລກສິນຄ້າພາຍໃນ 3-5 ວັນເຮັດວຽກຫຼັງຈາກພວກເຮົາໄດ້ຮັບມັນ. ການຄືນເງິນຈະຖືກດຳເນີນການ ແລະ ເຊື່ອມໂຍງໂດຍອັດຕະໂນມັດໄປຍັງວິທີການຊຳລະເງິນດັ້ງເດີມຂອງທ່ານ.ບໍ່ສາມາດຍອມຮັບການຄືນຫຼື ແລກຖ້າສິນຄ້າຖືກຜະລິດແບບປັບແຕ່ງ, ລວມທັງຂະໜາດປັບແຕ່ງ, ສີປັບແຕ່ງ, ຫຼື ການພິມປັບແຕ່ງ.ຕ້ອງການຄວາມຊ່ວຍເຫຼືອເພີ່ມເຕີມ, ກະລຸນາຕິດຕໍ່ພວກເຮົາ. service@roymall.com ຫຼື Whatsapp: +447549870296

2.ນະໂຍບາຍການຄືນເງິນ

ທ່ານຈະໄດ້ຮັບເງິນຄືນເຕັມຈຳນວນ ຫຼື ເງິນຄັງ 100% ຫຼັງຈາກພວກເຮົາໄດ້ຮັບແພັກເກົ່າທີ່ຄືນ ແລະ ກວດສອບມັນ. ການຄືນເງິນຈະຖືກດຳເນີນການ ແລະ ເຊື່ອມໂຍງໂດຍອັດຕະໂນມັດໄປຍັງວິທີການຊຳລະເງິນດັ້ງເດີມຂອງທ່ານ. ກະລຸນາສັງເກດວ່າຄ່າໃຊ້ຈ່າຍໃນການຈັດສົ່ງ ແລະ ຄ່າທຳນຽມຫຼື ຄ່າທຳນຽມໃດໆບໍ່ສາມາດຄືນໄດ້. ຄ່າໃຊ້ຈ່າຍໃນການຈັດສົ່ງເພີ່ມເຕີມບໍ່ສາມາດຄືນໄດ້ເມື່ອແພັກເກົ່າໄດ້ຖືກຈັດສົ່ງແລ້ວ. ທ່ານແມ່ນຜູ້ຮັບຜິດຊອບໃນການຊຳລະຄ່າໃຊ້ຈ່າຍເຫຼົ່ານີ້ ແລະ ພວກເຮົາບໍ່ສາມາດຍົກເວັ້ນຫຼື ຄືນມັນ, ເຖິງແມ່ນວ່າຄຳສັ່ງຈະຖືກສົ່ງຄືນມາຫາພວກເຮົາ.ຫຼັງຈາກພວກເຮົາໄດ້ຮັບ ແລະ ຢືນຢັນສິນຄ້າທີ່ຄືນຂອງທ່ານ, ພວກເຮົາຈະສົ່ງອີເມວໃຫ້ທ່ານເພື່ອແຈ້ງໃຫ້ທ່ານຮູ້ວ່າພວກເຮົາໄດ້ຮັບສິນຄ້າທີ່ຄືນຂອງທ່ານ. ພວກເຮົາຍັງຈະແຈ້ງໃຫ້ທ່ານຮູ້ກ່ຽວກັບການອະນຸມັດຫຼື ປະຕິເສດການຄືນເງິນຂອງທ່ານ.ຖ້າທ່ານມີບັນຫາໃດໆກ່ຽວກັບຂະບວນການຄືນເງິນ, ກະລຸນາຕິດຕໍ່ພວກເຮົາ. service@roymall.com ຫຼື Whatsapp: +447549870296

5Pcs Speed Measuring Sensor Counter Motor Test Groove Coupler Module For

Application:

Widely used in motor speed detection, pulse count, the position limit, etc.

Feature:

Using imported groove optical coupling sensor, width 5mm.
It have the output state light, if output high level, the lights are off. if output low level ,it on.
If it covered,it will output high level;otherwise it output low level.
Good signal and waveform, with strong driving ability for more than 15mA.
The working voltage of 3.3V to 5V.
Output: digital switch output (0 and 1).
Equipped with a fixed bolt hole, easily install.
Small board PCB size: 3.2 cm x 1.4 cm.
Use the LM393 wide voltage comparer.

Specification:

The DO output interface can be directly connected to a micro-controller IO port, if there is a block detection sensor, such as the speed of the motor encoder can detect.
DO modules can be connected to the relay, limit switch, and other functions, it can also with the active buzzer module, compose alarm.

Wiring specification:

VCC Connect the positive 3.3 5 v power supply
GND Connect power negative
DO TTL switch signal output
AO This module does not work

Package included:

5 x Speed Measuring Sensor Module

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Plons VIP3

12/11/2015

The output of this board can oscillate when the slot in the wheel is half open - half closed. The designer added a 100nF capacitor across the photo transistor but that makes the situation worse.
To fix this problem, the capacitor closest to the edge of the board should be removed and a 33k resistor must be added between output (pin7) and the non-inverting input (pin5).
I will post the schematic in a second.

Note: if you poll the output in your software, you can omit the modification. But if you use an interrupt or clock-input, this mod is necessary.

The output of this board can oscillate when the slot in the wheel is half open - half closed. The designer added a 100nF capacitor across the photo transistor but that makes the situation worse.
To fix this problem, the capacitor closest to the edge of the board should be removed and a 33k resistor must be added between output (pin7) and the non-inverting input (pin5).
I will post the schematic in a second.

Note: if you poll the output in your software, you can omit the modification. But if you use an interrupt or clock-input, this mod is necessary.

The output of this board can oscillate when the slot in the wheel is half open - half closed. The designer added a 100nF capacitor across the photo transistor but that makes the situation worse.
To fix this problem, the capacitor closest to the edge of the board should be removed and a 33k resistor must be added between output (pin7) and the non-inverting input (pin5).
I will post the schematic in a second.

Note: if you poll the output in your software, you can omit the modification. But if you use an interrupt or clock-input, this mod is necessary.

7

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SEBASTIEN NOIR VIP1
FR
08/10/2017

The Product works as it is said in the description:
It does not give you speed (speed calculations have to be done by the micro-controller) so the name "Speed Measuring Sensor" is a bit off.

these modules could also be used as optical endstops for 3D printers

The Product works as it is said in the description:
It does not give you speed (speed calculations have to be done by the micro-controller) so the name "Speed Measuring Sensor" is a bit off.

these modules could also be used as optical endstops for 3D printers

The Product works as it is said in the description:
It does not give you speed (speed calculations have to be done by the micro-controller) so the name "Speed Measuring Sensor" is a bit off.

these modules could also be used as optical endstops for 3D printers
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