esp32 micropython ble_center初体验
本帖最后由 dfrobot_wx 于 2017-7-23 17:52 编辑本例程所需原料
硬件
1.FireBeetle-ESP32主板
2.Bluno主板
软件
1. uPyCraft
esp32端代码如下：
import gc
import sys
import network as n
import gc
import time
b = n.Bluetooth()
found = {}
complete = True
connectname = ""
mac=b'\x00\x00\x00\x00\x00\x00'
def bcb(b,e,d,u):
global complete
global found
global connectname
global mac
if e == b.CONNECT:
print("CONNECT")
elif e == b.DISCONNECT:
print("DISCONNECT")
elif e == b.SCAN_RES:
if complete:
found = {}
adx, name,ssic= d
if connectname == str(name):
mac = adx
print(d)
if adx not in found:
found = name
else:
print('else')
print(d)
elif e == b.SCAN_CMPL:
ok = True
print("Scan Complete")
complete = True
print ('\nFinal List:')
for adx, name in found.items():
print ('Found:' + ':'.join(['%02X' % i for i in adx]), name)
print('connect ',name)
else:
print ('Unknown event', e,d)
def cb (cb, event, value, userdata):
print('charcb ', cb, userdata, ' ', end='')
if event == b.READ:
print('Read')
return 'ABCDEFG'
elif event == b.WRITE:
print ('Write', value)
elif event == b.NOTIFY:
print ('Notify', value)
def conn(bda):
b.ble_settings(adv_is_scan_rsp = False)
conn = b.connect(bda)
i=0
while not conn.is_connected():
i=i+1
time.sleep(.1)
print ('Connected')
time.sleep(2) # Wait for services
service = ( == b'\x00\x00\xDF\xB0'] + )
if service:
print(service.chars())
char = ( == b'\x00\x00\xDF\xB1'] + )
char.callback(cb)
if char:
char.callback(cb)
if i == 10:
print('time out')
break
return conn
def onScanComplete():
time.sleep(2)
def set_connetname(name):
return "b'%s'" % name
def scan():
global connectname
connectname = set_connetname("Bluno")
b.ble_settings(adv_is_scan_rsp = True)
b.scan_start(5)
time.sleep(10)
b.callback(bcb)
scan()
print('mac:',mac)
conn(mac)
1. 使用uPyCraft下载到板子上并运行
2. BLE开始扫描并连接设备
3. 成功连接上设备
4. 打开串口调试工具，向BLUNO串口发送数据
5、Esp32收到的数据
这个例程在连接过程中有时会出现不稳定现象，望各位大神指正。
该例程中使用的从机模块是bluno,各位师兄可以使用其他的ble模块，只需要在esp32程序中的更改相应的设备名以及需要监听的uuid即可。
[赞],点击[ http://pinyin.cn/e19975 ]查看表情 你好 ，我用时用的程序连一个蓝牙手柄 显示连接不上，
0;31mE (996959) BT: btm_sec_clr_temp_auth_service() - no dev CB
[0m
[0;31mE (996959) BT: bta_gattc_conn_cback() - cif=4 connected=0 conn_id=4 reason=0x0008[0m
[0;31mE (996959) BT: Device not found
[0m
[0;31mE (996959) BT: bta_gattc_mark_bg_conn unable to find the bg connection mask for: ff:ff:97:01:cd:64[0m
页:
[1]