https://community.element14.com/products/raspberry-pi/Join the Raspberry Pi Community, learn about the Pi 5 and the family of the single board computeren-USTelligent Community 12https://community.element14.com/products/raspberry-pi/raspberrypi_projects/b/blog/posts/adding-wireless-capability-to-custom-rp2040-rp2350-projects-pi-radio-module-2---anyone-tried-itTue, 30 Jun 2026 16:29:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:d93937ff-6138-456b-99e8-0609a81acecdshabazI just noticed the other day that this thing existed; it supports 2.4 GHz wireless (not 5 GHz), and Bluetooth LE (BLE); the manufacturer part code is RMC20452T , also known as RM2 and it costs about $4. Underside; the board is 16.5 x 14.5 mm in size (but you'll need some space for a ground plane): The RM2 is useful for custom RP2040 or RP2350 projects where WLAN (again, annoyingly just 2.4 GHz)/BLE is needed; not useful for anything else as far as I'm aware. From a software perspective, coding should be no different to using a Pi Pico W. The RM2 should be very easy to drop into KiCad projects, since the footprint/symbol/3D model is available . The RM2 datasheet (PDF) seems easy enough to follow, but is extremely basic; and I found it a bit confusing regarding a 'reset' line it mentions, but the text is silent on that later. It is not clear what line that refers to. There are no suggested layouts, the PDF just states a good ground plane is needed, and shows the copper fill keepout area. Note that there isn't a version with antenna connector, however, one workaround would be to place the module on a PCB (large enough to have a ground plane, or perhaps use parts of an enclosure for that) and run the interface wires a short distance to the microcontroller, if you needed the antenna positioned somewhere not feasible on the main circuit board. Personally, if it were me, I would try to use the module in that way, i.e. on a separate PCB with short wires, before integrating onto a larger PCB; I'd much rather have it separately and position it for the best signal. Anyone see a use for this module? Or if anyone has seen it in use, any photos showing how it was deployed in the design would be great to see. At some point I'd like to experiment with creating a PCB for it, but I was wondering if anyone else had given it a shot, or were planning to, or would like to! Thanks for reading.RP2350Pi Pico WRM2wlan2.4ghzwireless lanrpiexpertrp20402.4 ghzwirelessPi Radio Module 2RMC20452Tpi picohttps://community.element14.com/products/raspberry-pi/f/forum/57076/pi-5-custom-active-fan-setup/236276Tue, 30 Jun 2026 05:23:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:03ddae25-5454-468e-a914-47e7c803a9a7ralphjyYou might try looking at this link how-to-customize-raspberry-pi-5-fan-speeds . Here is the relevant info from that discussion: "You are correct that the device-tree is where this is configured, but the dtb file is the compiled device-tree which isn’t (directly) editable. However, in this case we don’t even need to edit the device-tree itself because the values you want to tweak are parameterized and can be customized simply by adding some lines to /boot/firmware/config.txt. Firstly, the reference file you want to have a look at is /boot/firmware/overlays/README. This text file documents all the available device-tree overlays, and their parameters. It also documents the parameters for the base device tree, which is what we’re interested in here. Search for fan_temp0 in that README file and you should find yourself at the start of the various fan-related parameters in the base device-tree. I’ll quote them here, but you should double-check in that file in case they’ve changed across kernel versions:" *********** fan_temp0 Temperature threshold (in millicelcius) for 1st cooling level (default 50000). Pi5 only. fan_temp0_hyst Temperature hysteresis (in millicelcius) for 1st cooling level (default 5000). Pi5 only. fan_temp0_speed Fan PWM setting for 1st cooling level (0-255, default 75). Pi5 only. fan_temp1 Temperature threshold (in millicelcius) for 2nd cooling level (default 60000). Pi5 only. fan_temp1_hyst Temperature hysteresis (in millicelcius) for 2nd cooling level (default 5000). Pi5 only. fan_temp1_speed Fan PWM setting for 2nd cooling level (0-255, default 125). Pi5 only. fan_temp2 Temperature threshold (in millicelcius) for 3rd cooling level (default 67500). Pi5 only. fan_temp2_hyst Temperature hysteresis (in millicelcius) for 3rd cooling level (default 5000). Pi5 only. fan_temp2_speed Fan PWM setting for 3rd cooling level (0-255, default 175). Pi5 only. fan_temp3 Temperature threshold (in millicelcius) for 4th cooling level (default 75000). Pi5 only. fan_temp3_hyst Temperature hysteresis (in millicelcius) for 4th cooling level (default 5000). Pi5 only. fan_temp3_speed Fan PWM setting for 4th cooling level (0-255, default 250). Pi5 only. The syntax for customizing these is a little strange, but not too difficult. In /boot/firmware/config.txt you need to add lines with the format dtparam=PARAM=VALUE. For example, if you want to change the base temperature at which the fan turns on from 50°C to 55°C you might append the following (bearing in mind the value is in millicelcius): dtparam=fan_temp0=55000 You can list multiple parameters in a single dtparam= line like so: dtparam=fan_temp0=55000,fan_temp0_speed=90 Alternatively, you can use multiple dtparam= lines, if you prefer: dtparam=fan_temp0=55000 dtparam=fan_temp0_speed=90 ***********https://community.element14.com/products/raspberry-pi/f/forum/57076/pi-5-custom-active-fan-setupMon, 29 Jun 2026 20:33:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:d405b423-84da-4b56-98f4-84239878c00fbrex2048I am trying to setup a custom fan setting so that it will come on sooner, just to help keep it cooler. I have found the config.txt, how do I actually set a custom fan profile. The file is blank right now.