Tiny low cost regulators
DC-DC buck (step down) regulators which are preferable to linear regulators for in most cases. Rated at 3A but so small and costing so little! Size is only 20mm x 11mm and just as thick as the inductor, about 5mm in total. This is not much bigger than a TO-220 package. 6 pieces coming still attached through the pcb notches for €3.50 (free postage to Ireland) and they can be hard-wired to a fixed output voltage with a solder pad jumper.
I got THESE in the post today and the assembly appears to be very high quality, not skewed components, good solder masks/screen etc.
I like the 3 dbi , nice compact good quality and allowed the difference in signal compared with the 10 dbi is not worth it imho also depends on the distance between your GW and antenna (cable loss)
got it today and after soldering the usual connection DIO1 --> pinX it worked with the LMIC library and the prviously used code for the adafruit feather M0.
the board is 2.54mm wider than the original feather, but it could be a cheap substitute.
attention: the documentation notes the pin wron. look in LoRa.h
and you don’t need to install suggested libryry, because that’s forseen for node to node connection
// Adapted for DIYmall feather clone DIYLoRa32u4 Doc: ss = 19 , Reset = 9 , DIO0 = 26 (from LoRa.h)
// from Exemple Sender: ss = 8 , Rst = 4 , DIO0 = 7
const lmic_pinmap lmic_pins = {
.nss = 8, // chip select on clone (rf95module) see LoRa.h
.rxtx = LMIC_UNUSED_PIN, //
.rst = 4, // reset pin (M0=4)
.dio = {7, // DIO0 is hardwired to 7
5, // DIO1 is jumpered to 5
LMIC_UNUSED_PIN}, // DIO1 is jumpered to unused
};```
have fun :slight_smile:
