1 week ago
gkalemis
(verified owner)
Good solid product. You have to read the wiki page for the connections and use github code in the beginning. Support from the store is excellent. I achieved around 30cm with the included fat card. Buzzer is not included.
1 week ago
Bertrand
(verified owner)
Nice cheap module. You have to know that this module must be positive center powered and there is no reverse polarity protection.
4 weeks ago
Manolis N
schematics on wiki are not public, please share
1 month ago
Chao
Dear customer, We just checked our stock, all have bootloader. 1.Please double check the wiring. see image here: https://twitter.com/electro_phoenix/status/1138290433480519680 2. Make sure you choose correct board, it should be pro mini 5V/16M. The programming guide is product description, please double check.
2 months ago
rmerlob
(verified owner)
I bought a couple of these GPRS relay boards that I have not been able to make them work. They DO NOT get connected to the arduino IDE. Apparently they came with out bootloader.
2 months ago
Chao
Good to know this. No problem at all.
2 months ago
gito.nirmolo
(verified owner)
Hi Chao, It finally worked well at all. It happened just because of a wrong index position of PF Pulse Register. I am sorry about that.
2 months ago
Chao
Not very sure about this, but should be nothing limit, should work. We will have another full isolated version next week. You can try both later.
2 months ago
Ngo Huu Nam
Hi Is it safe to carry long time 12 - 18A 220VAC load? Thanks
3 months ago
Chao
Hello Gito, You can just add some loads like like to see if the current register updating / changing or not. I don't really know the error, this register update should be done by chip itself, not our board design anymore. Probably need to ask the chip company. Thank you.
3 months ago
Gito Nirmolo
(verified owner)
I have already tested this HLW8032 Breakout Board. I just report, Data Updata Reg Bit 7 is never inverted each PF Pulse Data Reg overflowed.
3 months ago
zavhoz2015
(verified owner)
I flashed espyeasy 2019406- works. when I flashed espeasy 20190409-fired up the led and stopped flashing. What can I do to flash the board. There is no connection and the led is on.
4 months ago
Chao
Updated quick test method using wemos, please see here: https://www.electrodragon.com/w/Energy_meter#Method_1 It is really simple anyway.
4 months ago
mandi
(verified owner)
Works with Win7 and the CH341 driver from www.wch.cn. To me this board is so versatile, so it's a must.