💬 Easy/Newbie PCB (RFM69 HW/W edition) for MySensors
-
Hi, I've lipo battery pack with 4,2v maximum voltage (3,6v nominal). Can I safely use it with this board? Do I need any modifications?
@emdzej - I'm not sure but it's designed for 3.3v. you have to check the rfm radio for Max input voltage on VCC and io. I think it's 3.3v so you might have to regulate down your lipo battery to this.
-
-
Has anybody any experience with pcbway? I ordered via the link provided here (7 weeks ago) and only received a message from paypal. I haven't gotten a tracking number and pcbway says they can't help me without an ordernumber (which I don't have).
-
I ordered the 3rd of september (paypal mail says this: tirs. 03. sept. 2019 13:04:13 CEST (UTC+2)), are there any orders around that time?
-
Could you add a 5 pieces option? The reason is the danish customs slaps an additional "fee" of ~24eu on imports over 12eu from china.
PCBway let's you choose 5 pieces on their website.
I tried using the gerber files but before I can upload them there is a host of settings which I don't know how to set.
-
Could you add a 5 pieces option? The reason is the danish customs slaps an additional "fee" of ~24eu on imports over 12eu from china.
PCBway let's you choose 5 pieces on their website.
I tried using the gerber files but before I can upload them there is a host of settings which I don't know how to set.
@kiesel - the number is set to 10 and this is nothing I can change, sorry. You can PM me about which setting you need to set and I can help you.
-
So I have made the adjustment for low power/battery mode (removed the LED, voltage regulator and sleeping most of the time).
Im having a hard time to trust my Multimeter at this point... showing 5.1uA in sleep() mode while sending shows almost 2mA! This cant be right???
At the moment im all out of boosters... I was sure I had more so I didnt order.
What I have done now is uploaded a sketch sleeping 15min, running the vcc check (since I dont have a booster) and reporting it back to me. Lets see what happens...
@sundberg84, I know this is already an old topic, but I was sure that I did read somewhere a sleep consumption of 5µA, so I'm not completely insane :-)
I've had recently a question about this in the battery powered topic : https://forum.mysensors.org/topic/4796/battery-powered-sensors/248, because my setup with a modified pro mini (no led and no power regulator) and a connected RFM69HW only, was consuming a 133µA at sleep state.
@Yveaux pointed me to the fact that in the beginning of the site article https://www.mysensors.org/build/battery, it was mentioned that a 120µA was to be expected.So how did you get this 5µ sleep consumption?
Is it the build quality of the pro mini?
I did a test with only a pro mini and the sketch of lowpowerlab and was also measuring 133µA. -
@sundberg84, I know this is already an old topic, but I was sure that I did read somewhere a sleep consumption of 5µA, so I'm not completely insane :-)
I've had recently a question about this in the battery powered topic : https://forum.mysensors.org/topic/4796/battery-powered-sensors/248, because my setup with a modified pro mini (no led and no power regulator) and a connected RFM69HW only, was consuming a 133µA at sleep state.
@Yveaux pointed me to the fact that in the beginning of the site article https://www.mysensors.org/build/battery, it was mentioned that a 120µA was to be expected.So how did you get this 5µ sleep consumption?
Is it the build quality of the pro mini?
I did a test with only a pro mini and the sketch of lowpowerlab and was also measuring 133µA.@evb - Hi, to be hones I don't even remember. I dont have any exact equipment to measure except a normal multimeter, so that can be that my reading is way off, or it was without the radio? Sorry, no documentation about this and no memory at this point. But here is the battery of my EasyPCB RFM + Dallas temp sensor. I changed the batteries 3 months ago as you see and currently is about 87%.
-
@evb - Hi, to be hones I don't even remember. I dont have any exact equipment to measure except a normal multimeter, so that can be that my reading is way off, or it was without the radio? Sorry, no documentation about this and no memory at this point. But here is the battery of my EasyPCB RFM + Dallas temp sensor. I changed the batteries 3 months ago as you see and currently is about 87%.
-
@sundberg84 thanks for the update.
Is the graph done with Grafana & InfluxDb? -
For those who use this wonderfull PCB, it is possible to use it with a regulated 5V input or with a lithium 3.7V battery :: with the following two actions:
-
as a booster use a "1.8V 3V 3.7V 5V to 3.3V Boost & Buck Low Noise Regulated Charge Pump 2 in 1 DC/DC Converter"
This will convert anything between 1.8 - 5V to 3.3V- works with regulated 5V down to 3.3V
- works with lithium battery that start at 3.7V above 3.3, and then after sometime the battery goes down less than 3.3 and is boosted to 3.3
-
connect the "BAT" jumper so that input goes through you DC/DC converter
-
-
For those who use this wonderfull PCB, it is possible to use it with a regulated 5V input or with a lithium 3.7V battery :: with the following two actions:
-
as a booster use a "1.8V 3V 3.7V 5V to 3.3V Boost & Buck Low Noise Regulated Charge Pump 2 in 1 DC/DC Converter"
This will convert anything between 1.8 - 5V to 3.3V- works with regulated 5V down to 3.3V
- works with lithium battery that start at 3.7V above 3.3, and then after sometime the battery goes down less than 3.3 and is boosted to 3.3
-
connect the "BAT" jumper so that input goes through you DC/DC converter
-
-
@hlehoux - nice once! Thanks for sharing!
