Aliexpress is doing their 7th anniversary sales between 28-29/3.
Here’s some items I’m looking forward to. Note the sales price is only valid during sales time, it’s a preview for now.
Unlocked Huawei E8372 4G USB dongle with integrated WiFi Hotspot PLUS 4G External antenna: $59.45
This is suitable to program Nordic nRF52832 and nRF51822 BLE chip in the standard QFN48 package.
3 dbi - US $ 8.23 incl. shipping
EUR 46,38 Kostenlose Lieferung
US $7.36 incl. shipping
Anyone tried these? They seem to be all over Aliexpress now.
@ Epyon
buying 2 pieces is interesting, free shipping to the Netherlands.
There’s a new 3dB 868 antenna from the same seller, just came out for sale today. Looks interesting. $36.99 with free shipping
@BoRRoZ That’s interesting! The only thing I wonder is why that length? 
You can make a collinear array with the same gain and much smaller dimensions (e.g. the Sunhans one).
the 10 dbi is 90 cm compared to the 14 dbi that is 150 cm
10 dbi (90 cm) and 3 dbi (40 cm)
Interesting antenna. I dont’t know yet what performence it has: http://shop.top-electronics.eu/onboard-antenna-smd-868915-mhz-p-17150.html
Price: € 1,45
Datasheet: http://www.proant.se/files/user/Datasheet%20-%20OnBoard%20SMD%20868-915%20MHz%20rev%202.0.pdf
It’s very good 
Storage box with 250 SMD Tactile Push Button Touch Switches 10 different types: $6.08 delivered
DC / DC converters eBay
boost 5V + lipo charger :
boost 5V :
buck/boost 3v3 :
battery shops
