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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)# ^2 C+ I5 u$ C$ y
- #include <ESP8266HTTPClient.h>
% V6 I- x: J0 a& x - #include <ESP8266WiFi.h>$ b/ l4 Q# U, _9 Y2 f U
- #include <ESP8266WiFiMulti.h>
$ `! K# V# I( b7 K" @% _ - #include <ESP8266WebServer.h>/ R6 `2 y* E3 P4 W6 H
- #include <arduino.h>
, y& ^5 `; x4 O+ B5 S7 M# j - ESP8266WiFiMulti WiFiMulti;
" X# t4 k7 ^" \ - ESP8266WebServer server(80);: m. S, J8 e, w; `
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
" q* S- F2 T5 B5 N7 y/ c; j - ADC_MODE(ADC_VCC);
3 f% X& w7 U" Q1 I - void setup() {9 ]% R0 ? x2 j8 }' N
- Serial.begin(115200);( V0 {$ j2 }1 u! } Q* E. N0 C& \" y
- Serial.print("\r\n\n");. J+ ]# ]; Z- h; P( e4 X
- pinMode(2,OUTPUT);5 T# b& S5 S2 Z/ i" a4 B4 s
- // WIFI
7 W$ T6 c: i, A9 @, @1 Z& I. a - WiFi.mode(WIFI_STA);+ a9 M' f, E1 F
- WiFi.hostname("Sparkle");
% E+ Q5 z) Z# b Q - WiFiMulti.addAP("wifi ssid", "wifi password");
1 M7 R' h% R) D9 A2 p' `3 K# W) d - int tryNum = 15;8 m! [/ q" ?3 d S6 p$ \; v7 U; A6 Y
- Serial.print("Connect WiFi");+ K8 d6 \5 Y B4 ^4 }9 b
- while (WiFiMulti.run() != WL_CONNECTED) {
3 G, J& U' Y' _1 i2 o - digitalWrite(2,0);6 ^2 Y& N/ t0 Z* Q0 o
- delay(200);$ u8 r1 O1 B: @ X
- digitalWrite(2,1);
: L" ]2 ?7 u. w: e+ P3 ` - delay(300);
$ L, R) Z: T+ e8 c+ @7 ^ - Serial.print(".");
) ?7 R7 `0 q! H" v - tryNum--;
- g4 |* l2 l4 _6 w( h* ? - if (tryNum == 0) {
8 {& S% y; r0 ], J% t - // 1min3 y! _ Z, V) c6 G: N
- // ESP.deepSleep(60e6);
' H* P4 T" N( }8 U! G0 l3 ` - ESP.deepSleep(0);
8 ^) w5 H2 j; U" M; _ - }( G, j3 r- A5 t- e7 r- o" L& @
- }
x7 U1 h2 M, v: ~, v: H% ?2 a - Serial.print("\r\n");
% `" t# _: a8 y3 g% T H - digitalWrite(2,1);
3 K/ G, Y2 C3 C, C" c8 o5 ?3 \9 q - Serial.print("IP address : ");. k6 G5 k$ D8 F9 z
- Serial.println(WiFi.localIP());
! R4 k5 J- L8 {# s$ f" k) Z - server.on("/", HTTP_GET, [](){3 b+ B1 z% B5 i, O5 y+ K, |& t, o" H
- server.sendHeader("Connection", "close");
0 h8 Y) X7 f7 o4 r' n- w! v - server.send(200, "text/html", serverIndex);( P/ H' D3 L$ b
- });
# W: c9 G; j5 ^2 M7 @* c q/ L - server.on("/update", HTTP_POST, [](){5 o I v) ~- G4 L
- server.sendHeader("Connection", "close");/ {9 b9 |; s! K6 q& ?
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
8 }% v( ^; _' O: x8 X8 z - ESP.restart();
; F! K; U9 F8 ^1 U - },[](){
/ b* }( R0 F0 k6 x- @' L, s - HTTPUpload& upload = server.upload();
- s* S {: Z+ i2 B, U+ J4 g - if(upload.status == UPLOAD_FILE_START){
- x% g( [! [' x0 B - Serial.setDebugOutput(true);
8 H: ~) P" e+ |3 e6 e% h% q' p - Serial.printf("Update: %s\n", upload.filename.c_str());
. P" ~" Y$ ~* o! s - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000; w8 o1 _, q* i* z9 E- p
- if(!Update.begin(maxSketchSpace)){) C! V* |' P( f" U& y; W: M
- Update.printError(Serial);
% V3 y% }. g5 I- l: m: G9 G - }4 [1 \6 y7 C0 k9 H+ }
- } else if(upload.status == UPLOAD_FILE_WRITE){
4 e8 M& n4 _1 a- b2 p* M% @ - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
& w) s$ `& Q8 e0 h+ L# F) }. S - Update.printError(Serial);( Z( ?( d* k5 H' m5 [$ A
- }
r) C/ V5 x2 v2 R( B - } else if(upload.status == UPLOAD_FILE_END){& {" J* K& t) t9 S7 n. X
- if(Update.end(true)){! c# l& U6 s' m. C
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);( a! y" V$ T( z/ d# p, T3 q. s! F2 w
- } else {
8 A7 e7 ?4 Y! \ - Update.printError(Serial);! I/ S2 a* T0 l, V
- }
5 {* Q! \3 i$ v D4 H - Serial.setDebugOutput(false);) Q9 ?, E3 j1 E: X
- }
- n8 L& p( v& T k s5 n - yield();
$ C0 m8 |! ~0 N8 f - });5 E: R L8 n6 |' f1 c4 ^* Q0 p
-
% X- v9 R- U1 q' K5 l1 p - digitalWrite(2,0);
5 y7 x- b" f2 A9 [ - mainAction();
. `" `# \' L3 d/ z - if (digitalRead(0)){& ~# r1 f! _% F* Y; I
- ESP.deepSleep(0);
" i F' ?" f4 E4 T+ b" N# ?: o - } else {) ?! B5 ^3 _ C; r
- server.begin();
9 {+ ?+ ^+ V) [8 P1 x, X% { - }
, L: u: _5 K4 }( {1 o - }
. k9 c1 [$ ^4 ^+ x# | - void loop() {
+ @4 Y" V0 A0 p$ y - server.handleClient();
/ T0 a: W4 N2 E: J - delay(1);. R! e( w0 B/ Q1 j- e* _, G
- }
: P2 T% }8 V& q8 D/ j* v/ y - String doGet(String url){
2 Z$ I/ V2 K" @: G$ {- h - if ((WiFiMulti.run() == WL_CONNECTED)) {
- v2 o- `7 p9 G0 x1 l' C, o - HTTPClient http;
& [1 V [. ]% z. Q - Serial.println("[HTTP] begin..."); ?* F+ M/ m" Y4 O4 R
- if (url.startsWith("https")) {
2 Q; b+ m$ c. b' X8 I; Q4 \ d$ V# m - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
) }7 P* M. G5 _6 v& X! g - } else {' g9 X+ i" k& U
- http.begin(url);0 c/ c4 A& i7 |! M, @ {) p0 f
- }
: n F% l, R4 ], G$ x$ r2 x - Serial.println("[HTTP] GET...");% o( C* X8 b8 d" A r; f D
- int httpCode = http.GET();0 {- Q1 j1 T0 X; T) R
- if (httpCode > 0) {5 v# ? m2 l0 U# d/ V
- Serial.printf("[HTTP] code: %d\n", httpCode);6 ~, l9 ^/ Z7 Q
- if (httpCode == HTTP_CODE_OK) {
0 x3 j' `2 x" C: Z3 L - String payload = http.getString();
+ s2 P! x2 T5 M, O! L - Serial.println(payload);
- A( M& [' e6 d( @- a+ \' C - Serial.print("\r\n");0 ` ~$ b1 Q9 e, \) t
- return payload;9 v- D |+ h& q+ ~' l8 h
- }8 b9 ], N4 [/ }6 H1 q$ a1 ]
- } else {: y4 j0 m# Z+ z4 J' R; @. X8 i' ~
- Serial.printf("[HTTP] GET... failed, error: %s\n",
9 u. z/ Y4 y) V k: ? - http.errorToString(httpCode).c_str());
; T; n9 k& u v. M8 o - }
/ h# d0 |2 B+ E6 b/ U - http.end();. j6 K7 t! Z0 n9 |. j
- return "";- E6 T8 f5 r, s: E; f% b; ~: K9 \# ^* J
- }
* w T+ N8 n" [3 I$ H; N( B0 j; J - }7 l# Z+ {$ b$ M4 F
- void mainAction() {
6 f0 U; E# P2 h - // 发送请求
# D1 z# e3 L2 S9 X! Q - doGet("http://google.cn");; ]: [, M% w C- a
- }9 ^. v6 `4 Y: Y% M3 s! p8 V( c
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