# Experiences with RFM9x and SX127x based SPI LoRa modules

**URL:** <https://www.thethingsnetwork.org/forum/t/experiences-with-rfm9x-and-sx127x-based-spi-lora-modules/30741>\
**Category:** Hardware\
**Created:** [October 14, 2019, 10:00am UTC](https://www.thethingsnetwork.org/forum/t/experiences-with-rfm9x-and-sx127x-based-spi-lora-modules/30741 "2019-10-14T10:00:10Z")\
**Posts on this page:** 1\
**Showing post:** 12

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**Author:** ![bluejedi](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/bluejedi/32/44639_2.png) [@bluejedi](https://www.thethingsnetwork.org/forum/u/bluejedi)\
**Post date:** [October 13, 2019, 8:35am UTC](https://www.thethingsnetwork.org/forum/t/experiences-with-rfm9x-and-sx127x-based-spi-lora-modules/30741/12 "2019-10-13T08:35:42Z")

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The HPDTek [HPD13A](http://www.hpdtek.cn/products/wuxianmozu/LoRa/2019-07-29/74.html) is a SX1276 (and RFM95W) compatible module but then shielded.  
_I remember having read [somewhere](https://www.thethingsnetwork.org/forum/t/big-esp32-sx127x-topic-part-2/11973/11): that it has a 4-layer PCB while RFM95W has 2-layer PCB._

The HPD13A module is used on boards like BSFrance LoRa32u4 II, TTGO LoRa32 V2.x and TTGO T-Beam.

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