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Summary of Contents for Elekitsorparts FUNtronics NPR-70
- Page 1 Elekitsorparts Store Item Name: NPR-70 Modem Item No.: H10015K Document Type:Assembly Guide NPR-70 Modem Assembly Guide Rev 1.1 Elekitsorparts Store www.elekitsorparts.com...
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Page 2: Before Assembling
5.6GHz Hamnet, and can temporarily be used as an effective tool for accessing to DX Summit and DX Spot information from outdoor. Authorized by the original author F4HDK, elekitsorparts.com is proud to produce the NPR-70 modem kit. The following content is the assembly guide for this kit. For more information on the NPR-70 modem, please refer to the following website, https://hackaday.io/project/164092... - Page 3 Elekitsorparts Store Item Name: NPR-70 Modem Item No.: H10015K Document Type:Assembly Guide Step 1 We are going to install the RF module, and all of the through-hole parts, modules, DC port and toggle switch in this step. Here...
- Page 4 Elekitsorparts Store Item Name: NPR-70 Modem Item No.: H10015K Document Type:Assembly Guide are the parts that we need in this step. Quantity Quantity Sequence Designator Value Footprint Category needed supplied RF4463F30 Male Pin Header 2.54 x 4 LM2596 Module Module...
- Page 5 Elekitsorparts Store Item Name: NPR-70 Modem Item No.: H10015K Document Type:Assembly Guide Adjust your soldering iron to the highest temperature that it can go. Solder the 2 pins indicated in the picture below. Because these 2 pads are connected to GND, and the large areas of copper will cause heat to dissipate quickly, so please keep the tip of your solder iron stopping on the solder pad for a sufficient amount of time to ensure that the solder is completely melted.
- Page 6 Elekitsorparts Store Item Name: NPR-70 Modem Item No.: H10015K Document Type:Assembly Guide Till now, all of the SMD parts have been soldered, please carefully check back at least once in order to ensure the success of building. Let’s move on to Step 2.
- Page 7 Elekitsorparts Store Item Name: NPR-70 Modem Item No.: H10015K Document Type:Assembly Guide Finally, solder them onto the module. Please keep the leg of the pin header straight when soldering, as we have to insert the module onto the main PCB later.
- Page 8 Elekitsorparts Store Item Name: NPR-70 Modem Item No.: H10015K Document Type:Assembly Guide Sequence 4 Parts Needed: Female Pin Header 2.54 x 15 x 2, Female Pin Header 2.54 x 1, STM32 L432KC x 1 We have to solder the female pin headers to the main PCB, and then insert STM32L432KC module to the female pin...
- Page 9 Elekitsorparts Store Item Name: NPR-70 Modem Item No.: H10015K Document Type:Assembly Guide Notes on STM32L432KC: The are some important solder joints on STM32L432KC Module board, and 2 or 3 of them should be dis-soldered in order to configure our modem to work remotely or normally. It is really a tough job to dis-solder these tiny jumpers on the board, so we have done this job for our users.
- Page 10 Elekitsorparts Store Item Name: NPR-70 Modem Item No.: H10015K Document Type:Assembly Guide Sequence 7 Parts Needed: LM2937_3V3 x 1 Now solder the LM2937_3V3 to the main board.
- Page 11 Elekitsorparts Store Item Name: NPR-70 Modem Item No.: H10015K Document Type:Assembly Guide Sequence 8 Parts Needed: SMA Right Angle Long x 1 Take the SMA port out, remove the outer washer and nut, and solder it to the main board. Please make sure your solder iron has sent the maximum power out when soldering, as the outward 4 pins are connected to GND.
- Page 12 Elekitsorparts Store Item Name: NPR-70 Modem Item No.: H10015K Document Type:Assembly Guide Now, apply a 12V DC power source to the modem, and switch it ON. If everything goes fine, the PWR led will be on. The CON led and RX led will be flashing initially, then they go OFF, so as the TX led. The PWR led always keeps ON. If your modem doesn’t behave like this, please carefully inspect all of the previous sequences and steps.
- Page 13 Elekitsorparts Store Item Name: NPR-70 Modem Item No.: H10015K Document Type:Assembly Guide Note on flashing firmware: We have flashed the STM32 board with the newest firmware and upgraded the built-in ST-LINK to the newest version before shipment. For the future firmware upgrade, please do it according to the following instructions.
- Page 14 Elekitsorparts Store Item Name: NPR-70 Modem Item No.: H10015K Document Type:Assembly Guide To flash a new firmware, just copy the firmware file and paste it to this new Disk Drive. When finished, unplug the USB cable and switch off the unit.
- Page 15 Elekitsorparts Store Item Name: NPR-70 Modem Item No.: H10015K Document Type:Assembly Guide Find out supplied enclosure from the package, insert the modem board to the bottom cover of the enclosure by the slot on the wall. Locate the rear panel, mount the DC port and toggle switch onto the panel, and finally the rear panel onto the bottom cover.
- Page 16 Elekitsorparts Store Item Name: NPR-70 Modem Item No.: H10015K Document Type:Assembly Guide Next, we have to secure the L4940’s heat-sink plate onto the rear panel, also secure the SMA port with teeth washer and nut. Now the rear panel is done. Let’s move onto the front panel.
- Page 17 Elekitsorparts Store Item Name: NPR-70 Modem Item No.: H10015K Document Type:Assembly Guide Now, turn over the modem, go to the bottom side of the enclosure, screw the 5 copper posts fixed on the main PCB board onto the bottom cover.
- Page 18 Elekitsorparts Store Item Name: NPR-70 Modem Item No.: H10015K Document Type:Assembly Guide Take out the rubber feet, paste them on the bottom cover as the following picture shows. Congratulations! You now have your own NPR-70 modem. It is time to configure your modem into “MASTER” or “CLIENT”...
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