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Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Communication speed: no higher than 500K / automatic adaptation, Flow control: automatic flow control, Operating current: Static 3mA, Item name: TTL to RS485 485 to Serial UART Level Converter Module, Brand name: Lantianrc, Working temperature: Recommended -30 °C -70 °C (limit range -40 °C -80 °C), Operating voltage: 5.0V, Load capacity: Maximum 128 devices, Size: 42*25mm
Banggood
Banggood warehouse is located in China. CouponsFromChina software could not find any coupon for this product in Banggood.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
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Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG04a187, BGToys8, BGMatt2022, BG589b2e
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Check out price history chart (for all/most countries) for Lantianrc TTL to RS485 485 to Serial UART Level Converter Module.
Price records source(s): Banggood
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You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).