# Hardware **URL:** https://community.morsemicro.com/c/hardware/7.md [Latest](https://community.morsemicro.com/latest.md) · [Categories](https://community.morsemicro.com/categories.md) · [Tags](https://community.morsemicro.com/tags.md) --- ## [About the Hardware category](https://community.morsemicro.com/t/about-the-hardware-category/18)
**Author:** [@Zandr](https://community.morsemicro.com/u/Zandr)\ **Replies:** 0\ **Last updated:** [September 12, 2024, 9:24pm UTC](https://community.morsemicro.com/t/about-the-hardware-category/18 "2024-09-12T21:24:14Z")
Power, SDIO, SPI, USB, or RF, ask your hardware related questions here. This is the go-to space for all things hardware! Whether you’re building a Wi-Fi HaLow end-point, troubleshooting a device, or discussing the lates… --- ## [HaLowLink2 compatibility with TXW8301](https://community.morsemicro.com/t/halowlink2-compatibility-with-txw8301/1867)
**Author:** [@yuhan](https://community.morsemicro.com/u/yuhan)\ **Replies:** 43\ **Last updated:** [September 23, 2026, 7:53am UTC](https://community.morsemicro.com/t/halowlink2-compatibility-with-txw8301/1867 "2026-09-23T07:53:24Z")
Dear Support Team, I recently purchased your product, and I am currently attempting to establish a connection between the Halow Link2 (AU) (configured as an Access Point) and a third-party TXW8301-based module (configur… --- ## [MM8108-EKH01 — Morse chip never enumerates on SDIO bus (mmc1) after VBAT/VBAT\_TX jumper modification](https://community.morsemicro.com/t/mm8108-ekh01-morse-chip-never-enumerates-on-sdio-bus-mmc1-after-vbat-vbat-tx-jumper-modification/1980)
**Author:** [@Mbriquet](https://community.morsemicro.com/u/Mbriquet)\ **Replies:** 1\ **Last updated:** [September 11, 2026, 7:47am UTC](https://community.morsemicro.com/t/mm8108-ekh01-morse-chip-never-enumerates-on-sdio-bus-mmc1-after-vbat-vbat-tx-jumper-modification/1980 "2026-09-11T07:47:50Z")
Hello, I’m running into an issue on one of my two MM8108-EKH01 kits (MMECH17 v2 carrier board on a Raspberry Pi 4): the Morse Micro chip is never detected on the SDIO bus at boot, and no wlan0 interface is created. Con… --- ## [SCHEMATIC REVIEW for MM8108-MF15457 Halow](https://community.morsemicro.com/t/schematic-review-for-mm8108-mf15457-halow/1990)
**Author:** [@akhil](https://community.morsemicro.com/u/akhil)\ **Replies:** 14\ **Last updated:** [September 11, 2026, 7:43am UTC](https://community.morsemicro.com/t/schematic-review-for-mm8108-mf15457-halow/1990 "2026-09-11T07:43:49Z")
Hello morse micro team, pcb3-STM32.pdf (255.9 KB) pcb3-HALOW.pdf (172.3 KB) I am using the MM8108-MF15457 halow module in my new board design. The device is interfaced through SPI. I have attached the halow schematic … --- ## [Can HaLowLink 2 extend the Wi-Fi HaLow link of an EZVIZ EP7 video doorphone?](https://community.morsemicro.com/t/can-halowlink-2-extend-the-wi-fi-halow-link-of-an-ezviz-ep7-video-doorphone/1999)
**Author:** [@Santiago205c](https://community.morsemicro.com/u/Santiago205c)\ **Replies:** 2\ **Last updated:** [September 10, 2026, 12:29pm UTC](https://community.morsemicro.com/t/can-halowlink-2-extend-the-wi-fi-halow-link-of-an-ezviz-ep7-video-doorphone/1999 "2026-09-10T12:29:27Z")
Hello, I need technical advice about extending the Wi-Fi HaLow connection of an EZVIZ EP7 video doorphone (European version) installed at my home in Spain. The outdoor doorbell communicates with its indoor monitor thro… --- ## [SDIO - Impedance](https://community.morsemicro.com/t/sdio-impedance/2007)
**Author:** [@Quli](https://community.morsemicro.com/u/Quli)\ **Replies:** 1\ **Last updated:** [September 10, 2026, 1:24am UTC](https://community.morsemicro.com/t/sdio-impedance/2007 "2026-09-10T01:24:07Z")
Hello there, I was looking at the PCB layout of a project in the MMECH17 Design Package (based on MM8108), when I noticed that the SDIO net doesn’t have Controlled Impedance Routing enabled, and it uses the default trac… --- ## [Losing my mind trying to Halowlink2 to work](https://community.morsemicro.com/t/losing-my-mind-trying-to-halowlink2-to-work/1991)
**Author:** [@StewartUK](https://community.morsemicro.com/u/StewartUK)\ **Replies:** 4\ **Last updated:** [September 6, 2026, 11:41pm UTC](https://community.morsemicro.com/t/losing-my-mind-trying-to-halowlink2-to-work/1991 "2026-09-06T23:41:03Z")
Hi Ive been fighting to get these working for a month now, dont think can even send them back. So two HL2 - updated both to latest firmware 2..11.13 Reset, rebooted, updated tried on multiple routers. So setup one as… --- ## [MM8108 Temperature](https://community.morsemicro.com/t/mm8108-temperature/1961)
**Author:** [@secup](https://community.morsemicro.com/u/secup)\ **Replies:** 2\ **Last updated:** [September 4, 2026, 10:26am UTC](https://community.morsemicro.com/t/mm8108-temperature/1961 "2026-09-04T10:26:40Z")
Hello there, I’ve read the chip itself cutoff at 85 celcius, can we get the current temp value exposed? I’ve check driver and morse\_cli source, cant find anything exposed. Maybe i’ve missed something? --- ## [ Schematic review for mm8108-mf15457 HALOW ](https://community.morsemicro.com/t/schematic-review-for-mm8108-mf15457-halow/1880)
**Author:** [@akhil](https://community.morsemicro.com/u/akhil)\ **Replies:** 10\ **Last updated:** [September 4, 2026, 4:11am UTC](https://community.morsemicro.com/t/schematic-review-for-mm8108-mf15457-halow/1880 "2026-09-04T04:11:31Z")
Hello Morse Micro team, PART NUMBER-MM8108-MF15457 GATEWAY SOM-USB HUB.pdf (270.9 KB) GATEWAY SOM-HALOW.pdf (122.3 KB) PART NUMBER-USB2514B-AEZC-TR I am using the MM8108-MF15457 halow module in my new board design.… --- ## [Running multiple radios close together](https://community.morsemicro.com/t/running-multiple-radios-close-together/1969)
**Author:** [@arti.rajput](https://community.morsemicro.com/u/arti.rajput)\ **Replies:** 2\ **Last updated:** [August 26, 2026, 7:49am UTC](https://community.morsemicro.com/t/running-multiple-radios-close-together/1969 "2026-08-26T07:49:03Z")
Hi @james.haggerty @BiaoWang , Thanks for your input. Also can you please suggest if we can run two HaLow radios simultaneously on the same evaluation boards? We understand this isn’t a common topology, but wanted to … --- ## [Seeed Studio XIAO ESP32C3 + Wi-Fi HaLow Module for XIAO: sleep power consumption](https://community.morsemicro.com/t/seeed-studio-xiao-esp32c3-wi-fi-halow-module-for-xiao-sleep-power-consumption/1949)
**Author:** [@brendando](https://community.morsemicro.com/u/brendando)\ **Replies:** 5\ **Last updated:** [August 27, 2026, 6:20am UTC](https://community.morsemicro.com/t/seeed-studio-xiao-esp32c3-wi-fi-halow-module-for-xiao-sleep-power-consumption/1949 "2026-08-27T06:20:26Z")
Hi Morse Micro team, I’ve been playing around with the combo in the title using the ESP-IDF component. I’ve been aiming to get the sleep consumption down close to where the MM6108’s snooze power consumption is in the da… --- ## [HaLow Testing in rough forested terrain](https://community.morsemicro.com/t/halow-testing-in-rough-forested-terrain/1285)
**Author:** [@nomadros](https://community.morsemicro.com/u/nomadros)\ **Replies:** 10\ **Last updated:** [August 26, 2026, 10:01am UTC](https://community.morsemicro.com/t/halow-testing-in-rough-forested-terrain/1285 "2026-08-26T10:01:19Z")
Hi..newbie here. I’ve been testing HaLow on really rough, forested, no mobile signal, no power terrain in Spain and have a working POC (400m in bad ■■■ bush) . Actually it’s a mix of 2.4Ghz solar powered routers/extend… --- ## [Trying to connect Lilygo T-Halow client to MM8108-EKH19 AP](https://community.morsemicro.com/t/trying-to-connect-lilygo-t-halow-client-to-mm8108-ekh19-ap/1715)
**Author:** [@Stanley](https://community.morsemicro.com/u/Stanley)\ **Replies:** 9\ **Last updated:** [August 21, 2026, 3:47am UTC](https://community.morsemicro.com/t/trying-to-connect-lilygo-t-halow-client-to-mm8108-ekh19-ap/1715 "2026-08-21T03:47:31Z")
They are having problems connecting, they seem to see each other but Claude Code thinks packets are getting dropped at Morse module level as it reloads the baked in AU country code, also it’s very troubled by the country… --- ## [802.11s support on HaLowLink hardware](https://community.morsemicro.com/t/802-11s-support-on-halowlink-hardware/1859)
**Author:** [@deavmi](https://community.morsemicro.com/u/deavmi)\ **Replies:** 7\ **Last updated:** [July 24, 2026, 12:02am UTC](https://community.morsemicro.com/t/802-11s-support-on-halowlink-hardware/1859 "2026-07-24T00:02:30Z")
Hi all! I would like to know whether or not your Morse Micro routers which run OpenWRT, if their chipsets (which you develop) support the 802.11s mesh standard? Very important that I figure out that detail! I also want… --- ## [Antenna Matching and RF testing](https://community.morsemicro.com/t/antenna-matching-and-rf-testing/1421)
**Author:** [@doludiran](https://community.morsemicro.com/u/doludiran)\ **Replies:** 6\ **Last updated:** [July 23, 2026, 12:50pm UTC](https://community.morsemicro.com/t/antenna-matching-and-rf-testing/1421 "2026-07-23T12:50:16Z")
Hi morse micro, We are in the process of optimizing the antenna matching for FGH100MABMD module (based on the mm6108). Is it possible to put the module into a constant transmission mode where it is either repeatedly tra… --- ## [RESET\_N pull-up resistor DNP on EKH05 schematic](https://community.morsemicro.com/t/reset-n-pull-up-resistor-dnp-on-ekh05-schematic/1874)
**Author:** [@Ottup](https://community.morsemicro.com/u/Ottup)\ **Replies:** 2\ **Last updated:** [July 23, 2026, 5:18am UTC](https://community.morsemicro.com/t/reset-n-pull-up-resistor-dnp-on-ekh05-schematic/1874 "2026-07-23T05:18:37Z")
Hi, I’m designing a custom carrier board around the MM8108-MF15457 module (mini PCIe form factor) and I’m using the MM8108-EKH05 schematic (Appendix A of the EKH05 User Guide v3) as a reference for the RESET\_N circuit. … --- ## [Ground Plane PCB Questions](https://community.morsemicro.com/t/ground-plane-pcb-questions/1826)
**Author:** [@codbu13](https://community.morsemicro.com/u/codbu13)\ **Replies:** 1\ **Last updated:** [July 15, 2026, 2:25pm UTC](https://community.morsemicro.com/t/ground-plane-pcb-questions/1826 "2026-07-15T14:25:55Z")
I have done some tinkering with the MM8108 HAT PCB files on Morse Micro’s website. I noticed something interesting in the design. The ground layer seems unusual for this type of RF design. Could someone give some insigh… --- ## [Halowlink2 low bandwidth](https://community.morsemicro.com/t/halowlink2-low-bandwidth/1831)
**Author:** [@Makis](https://community.morsemicro.com/u/Makis)\ **Replies:** 5\ **Last updated:** [July 15, 2026, 9:14am UTC](https://community.morsemicro.com/t/halowlink2-low-bandwidth/1831 "2026-07-15T09:14:28Z")
I am using two Halowlink 2 right next to each other, home page shows 9Mbps. Iperf3 test is about 350Kbps!!! Any ideas anyone? --- ## [Halow USB Stick](https://community.morsemicro.com/t/halow-usb-stick/1502)
**Author:** [@castironclay](https://community.morsemicro.com/u/castironclay)\ **Replies:** 33\ **Last updated:** [July 14, 2026, 4:58am UTC](https://community.morsemicro.com/t/halow-usb-stick/1502 "2026-07-14T04:58:50Z")
Anyone have experience with this USB dongle? Seems like an easy way to add HaLow to devices but I can’t find very much online for how to run it on a Raspberry Pi. --- ## [PSA: Seeed XIAO HaLow (FGH100M-H): enumerates fine, RX fine, TX dead? Wire the 5V pad (VDD\_FEM)](https://community.morsemicro.com/t/psa-seeed-xiao-halow-fgh100m-h-enumerates-fine-rx-fine-tx-dead-wire-the-5v-pad-vdd-fem/1824)
**Author:** [@baudhound](https://community.morsemicro.com/u/baudhound)\ **Replies:** 0\ **Last updated:** [July 14, 2026, 3:36am UTC](https://community.morsemicro.com/t/psa-seeed-xiao-halow-fgh100m-h-enumerates-fine-rx-fine-tx-dead-wire-the-5v-pad-vdd-fem/1824 "2026-07-14T03:36:23Z")
If you’re wiring a Seeed XIAO Wi-Fi HaLow board (Wi-Fi\_Halow\_FGH100M\_EXT01, FGH100M-H / MM6108) to a Raspberry Pi over SPI, every tutorial and forum thread I could find shows only 3V3 + GND for power. After many sessions… --- ## [New Halowlink2 - how to configure country](https://community.morsemicro.com/t/new-halowlink2-how-to-configure-country/1779)
**Author:** [@Kenbsherman](https://community.morsemicro.com/u/Kenbsherman)\ **Replies:** 3\ **Last updated:** [June 30, 2026, 5:56am UTC](https://community.morsemicro.com/t/new-halowlink2-how-to-configure-country/1779 "2026-06-30T05:56:33Z")
I have a new HalowLink2 purchased from DigiKey. Updated firmware and I noticed that country is set to EU, and would presume that also affects the frequency used by the halow device. I’ve looked around and found a de… --- ## [AsiaRF ARFHL-OD-MS02 WiFi HaLow Gateway connection issues](https://community.morsemicro.com/t/asiarf-arfhl-od-ms02-wifi-halow-gateway-connection-issues/1762)
**Author:** [@alexgosleep](https://community.morsemicro.com/u/alexgosleep)\ **Replies:** 2\ **Last updated:** [June 25, 2026, 4:45am UTC](https://community.morsemicro.com/t/asiarf-arfhl-od-ms02-wifi-halow-gateway-connection-issues/1762 "2026-06-25T04:45:44Z")
Hello Morse Micro community: I am building an auto boat project which utilises two ARFHL-OD-MS02 WiFi gateways for communication between ground control station and the onboard companion chip. From what I read online an… --- ## [HaLowLink2 unstable Layer 2 WDS Bridge setup with OpenWrt (randomly drops/freezes)](https://community.morsemicro.com/t/halowlink2-unstable-layer-2-wds-bridge-setup-with-openwrt-randomly-drops-freezes/1721)
**Author:** [@Belacqua](https://community.morsemicro.com/u/Belacqua)\ **Replies:** 1\ **Last updated:** [June 25, 2026, 3:47am UTC](https://community.morsemicro.com/t/halowlink2-unstable-layer-2-wds-bridge-setup-with-openwrt-randomly-drops-freezes/1721 "2026-06-25T03:47:03Z")
Hi everyone, I am setting up an industrial IoT connection using two Morse Micro HaLowLink2 devices. My Setup: Master (AP): Connected via Ethernet to a Revolution Pi (RevPi Connect 5). Client (Station): Connected … --- ## [MM8108-EKH05 V2 direct USB connection to onboard MM8108-MF15457](https://community.morsemicro.com/t/mm8108-ekh05-v2-direct-usb-connection-to-onboard-mm8108-mf15457/1711)
**Author:** [@hkow56879](https://community.morsemicro.com/u/hkow56879)\ **Replies:** 2\ **Last updated:** [June 4, 2026, 5:08pm UTC](https://community.morsemicro.com/t/mm8108-ekh05-v2-direct-usb-connection-to-onboard-mm8108-mf15457/1711 "2026-06-04T17:08:34Z")
Hi, I own an MM8108-EKH05 V2 development board, I have noticed that the HaLow module has usb connection pads next to it, I have soldered a usb connector into it but unfortunately the module doesn’t come up in system as … --- ## [MM8108-EKH01-01 RASPBERRY PI Memory](https://community.morsemicro.com/t/mm8108-ekh01-01-raspberry-pi-memory/1643)
**Author:** [@nikmmm](https://community.morsemicro.com/u/nikmmm)\ **Replies:** 7\ **Last updated:** [May 22, 2026, 12:19pm UTC](https://community.morsemicro.com/t/mm8108-ekh01-01-raspberry-pi-memory/1643 "2026-05-22T12:19:42Z")
Hey! I am interested in buying this develoepment kit to start researching and developing with WIFI Halow. Can you please inform me how much memeory the Raspberry Pi used in the Kit has? It boots from SD card or NVMe ? An… --- ## [External amplification & MM8108](https://community.morsemicro.com/t/external-amplification-mm8108/1629)
**Author:** [@sstbrg](https://community.morsemicro.com/u/sstbrg)\ **Replies:** 1\ **Last updated:** [May 21, 2026, 12:14am UTC](https://community.morsemicro.com/t/external-amplification-mm8108/1629 "2026-05-21T00:14:39Z")
Hi all, I have purchased dev kits of both models. I want to add 1-2dBm of external amplification (still remain within regulation of course, but get a bit more range). I read that to expose a GPIO, I need to edit the BC… --- ## [MM8108 not recognized](https://community.morsemicro.com/t/mm8108-not-recognized/1606)
**Author:** [@Forge](https://community.morsemicro.com/u/Forge)\ **Replies:** 3\ **Last updated:** [May 6, 2026, 9:41am UTC](https://community.morsemicro.com/t/mm8108-not-recognized/1606 "2026-05-06T09:41:24Z")
We are currently working on integrating the MM8108-MF-15457 based on the USB network adapter reference schematic provided in the datasheet. The device is being supplied with the specified operating voltages; however, we … --- ## [RF switch pin for external FEM](https://community.morsemicro.com/t/rf-switch-pin-for-external-fem/1568)
**Author:** [@HomeLab](https://community.morsemicro.com/u/HomeLab)\ **Replies:** 1\ **Last updated:** [April 22, 2026, 4:45am UTC](https://community.morsemicro.com/t/rf-switch-pin-for-external-fem/1568 "2026-04-22T04:45:53Z")
Hi, Is there a chance to implement RF switch feature on some GPIO to support external FEM ? --- ## [MM8108 noise suddenly raised, back to normal after a reboot](https://community.morsemicro.com/t/mm8108-noise-suddenly-raised-back-to-normal-after-a-reboot/1513)
**Author:** [@bigboy061293](https://community.morsemicro.com/u/bigboy061293)\ **Replies:** 6\ **Last updated:** [April 20, 2026, 1:48am UTC](https://community.morsemicro.com/t/mm8108-noise-suddenly-raised-back-to-normal-after-a-reboot/1513 "2026-04-20T01:48:55Z")
Hi community, I have 2 MM8108 working in the mesh mode. While making a long observation, I saw that, the noise in one MM8108 (the right hand window) jumped and stayed stable from about -100dBm to -80dBm It went back… --- ## [MM6108 TX power (chip-level), BCF customization, and CW mode access](https://community.morsemicro.com/t/mm6108-tx-power-chip-level-bcf-customization-and-cw-mode-access/1488)
**Author:** [@AlexShmel](https://community.morsemicro.com/u/AlexShmel)\ **Replies:** 9\ **Last updated:** [April 10, 2026, 6:29pm UTC](https://community.morsemicro.com/t/mm6108-tx-power-chip-level-bcf-customization-and-cw-mode-access/1488 "2026-04-10T18:29:33Z")
I have already purchased ~200 MM6108 chips and built the first iteration of my prototypes with a custom FEM. I have a few questions: TX power of the chip only: What is the minimum and maximum TX output power (in dBm… [Next page](https://community.morsemicro.com/c/hardware/7.md?page=1)