Do you want to be able to use the device for EU868? If so removing the low power output would be a bad choice as it increases power usage during transmission significantly without any gain in output power.
Because the LP port uses a high efficiency power amplifier, the BOOST pin does not.
This is mentioned in the LoRa device datasheets, which if your designing a LoRa board with its own RF bits etc, is an essential cover to cover read.
Most, even experienced designers, would stay away from laying out their own LoRa board, it requires a fair bit of background and understanding of LoRa and RF stuff, plus a fair bit of fancy test equipment to make sure the impedance matching and harmonic surpression is adequate.
Seeed Studio Wio-E5 is also only bringing the high-power output out. (Up to 22 dBm).
Using it in EU, you have to limit to 14 dBm.
For 14 dBm, it’s going to consume 45 mA (HighPower output) io 25.5 mA (LowPower output), according to the SX126x datasheet.
So this module is not optimal in terms of power efficiency for EU-868
Yes, they made that mistake, as did RAK. However, they got the RF matching right. Starting out from scratch is nice if you have an awful lot of time to waste and the right knowledge and equipment to get things right. And the drive to learn things by searching and trying, not by asking someone to help out every step of the way because there won’t be a lot of people here able to help.
Yup, we mourned those design flaws when it first came out. The RAK module has the same flaw/assumption too, however I believe the RAK SIP has resolved this.
It would be have been a smarter move by the Far East companies to create an efficient EU module, but the reality is that they created an easy to use STM32WL module at a (rapidly fluctuating) reasonable price. And I can place the Seeed module by hand on to a PCB, whereas having watched others trying to place BGA components, I know I’m not going to be very efficient at that. And I don’t have a tearing need right now to run out a few hundred at my CEM on their PnP machines.
So I’m happy to spend a little more on batteries for adhoc prototypes for the convenience of supply chain & manufacture.