You can create price alert here, copy coupons and view price history. You probably want to know what is the best price?
MCU: STM32F405, Gyro: MPU6000, Input Voltage: Support 3-6S Lipo, BEC Output: 5V@ 3A,: 3.3V @ 0.3A, – Also have 9V @ 1.2A, Size: 38 (L)X386(W) mm, Hole Distance: 30.5×30.5mm
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):
Banggood
Banggood warehouse is located in China. I found coupon for you. Check this out.
Link: Banggood product page
1. ($36.79): Parts8
put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): hotrc10, 502C6B, DYSF4, TTxBG10, bgssaff9, BGGEPPart, AFfbG10, BGVDay10%off, BGAFF10OFF, bGhOnEy10, BGdragonBoat, BGSS10%SW, bgshOOp10, BGRC902, BgoFErTaSchInA10, BGHONEY2110
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Price history (for all/most countries) for Upgrade DYS 30.5×30.5mm F4 Pro V2 Flight Controller is here.
Price records source(s): Banggood
Click on image to enlarge.
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)).