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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); B8 c) @3 X L1 z4 ?( u$ N! Q
- #include <ESP8266HTTPClient.h>
3 V( B2 z4 L3 v! A# J5 ~* g0 b - #include <ESP8266WiFi.h>2 @2 z' ^* }8 ^$ C0 R: Q, Z! T
- #include <ESP8266WiFiMulti.h>
$ ~7 F# Y" @9 `) K - #include <ESP8266WebServer.h>: D% r- l' k- z% N/ m
- #include <arduino.h>
. w; A9 m+ C, U) @ V - ESP8266WiFiMulti WiFiMulti;
6 o# E' b( r/ `) }9 r$ N: o - ESP8266WebServer server(80);
o) D2 ]# u: u6 r- O8 f } - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";. p$ P- j- y0 b! H3 ^+ `
- ADC_MODE(ADC_VCC);8 t# [, l" z K4 E
- void setup() {
) Y# O- ]7 P( |7 [9 p - Serial.begin(115200);
3 g$ [! I/ M3 z+ U, j6 ] - Serial.print("\r\n\n");
" K1 t' ?6 S" v0 D - pinMode(2,OUTPUT);4 `& x, W0 N! E# L: ^6 J
- // WIFI
! s! e/ {( Q, J% \* S - WiFi.mode(WIFI_STA);7 a& ?7 b* ` X5 h
- WiFi.hostname("Sparkle");
- ^. n& Z" W$ m; _1 m - WiFiMulti.addAP("wifi ssid", "wifi password");
8 {( y$ I) ?5 @* H6 _/ t/ l - int tryNum = 15;
1 Q* S) @2 t* y G$ Y+ I6 y6 } - Serial.print("Connect WiFi");
+ S) y9 S& T% |3 U9 _! _ - while (WiFiMulti.run() != WL_CONNECTED) {7 J4 V, ] _0 ]8 b4 j0 A4 w
- digitalWrite(2,0);
2 H$ l2 w. c( N2 V+ [/ n - delay(200);
6 j5 S9 \& U7 v - digitalWrite(2,1);
8 @; K1 L W: a/ p* |- ] - delay(300);, A2 ~* r) v% ^' i, @1 S3 [' O- K
- Serial.print(".");1 R o2 i1 K/ f+ m
- tryNum--;. J* r4 P/ q9 y6 X6 b
- if (tryNum == 0) {' [8 G1 m. E7 u, S$ O
- // 1min
/ g& @$ x) b2 u4 G2 T# s) D - // ESP.deepSleep(60e6);
1 |+ [! m4 g4 K& t- I; v9 F - ESP.deepSleep(0);
" n8 s9 r: @: R - }
+ m/ i, ]! |( Q/ y - }! B i& e- v9 L7 J- Q9 z
- Serial.print("\r\n");
. d1 _2 w1 G9 s, l% k7 J" Q/ O - digitalWrite(2,1);0 _6 w; i9 U c5 X6 g& w, E; U! E
- Serial.print("IP address : ");
' c8 A4 J; X* n) V5 p; H - Serial.println(WiFi.localIP());
- F B3 [9 `! T - server.on("/", HTTP_GET, [](){ w6 J5 c. w7 q5 S8 ~4 P
- server.sendHeader("Connection", "close");0 P) {$ i8 ^1 y; u6 t: v( l3 w
- server.send(200, "text/html", serverIndex);( U/ X( O! h% ^* @- j, Y
- });
% S; o" M9 I9 ]# e0 ?& x - server.on("/update", HTTP_POST, [](){
1 V( w q/ @, ]: y! Y - server.sendHeader("Connection", "close");
5 u# T5 B; t& s) o d/ r* I* W - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");* E, H$ a2 N6 o; z: t
- ESP.restart();8 N3 d, j0 |" j9 a* L- o
- },[](){% V' h: ]2 W* l3 _
- HTTPUpload& upload = server.upload();- ~& K' M1 U( s! y7 k
- if(upload.status == UPLOAD_FILE_START){
' d! ?1 k: y9 d" M# P - Serial.setDebugOutput(true);
3 ~/ \ z7 x% W7 ~+ v" P - Serial.printf("Update: %s\n", upload.filename.c_str());
' o6 N F' U- ~ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;9 F8 V$ R( m* M- }
- if(!Update.begin(maxSketchSpace)){# ]# N% z- S& I- w$ q: \- q
- Update.printError(Serial);7 N) P# O! K3 o% F9 h$ F8 A3 ~1 j
- }. q* V9 F) z# y2 F! b4 h
- } else if(upload.status == UPLOAD_FILE_WRITE){
4 b2 m; m {8 s- [0 g' A - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
7 D0 _6 e8 s5 J% J, g& L. I - Update.printError(Serial);
$ p6 O( l) j! j - }
2 X) D! z9 E) y - } else if(upload.status == UPLOAD_FILE_END){1 e! S% A# B0 ]+ ]7 g
- if(Update.end(true)){
; c% d' U9 [' p! l3 A - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);5 R: ~: @0 e, l
- } else { p, G( K7 _( G% d' ^% g
- Update.printError(Serial);$ `. q2 H( z& w0 R) j8 R% h
- }
' ~6 T* [9 }3 G) w! e; H8 O! E - Serial.setDebugOutput(false);3 b8 W# k/ F& X( F
- }; o& o1 k8 j+ d) w
- yield();
! Z1 i o# z2 d6 f( B- N" t - });* z# ^$ v4 v+ `1 ~
- 4 G6 `$ B3 a6 o, _
- digitalWrite(2,0);7 i. n3 l# B, A! A9 v
- mainAction();% I$ ]" O% K3 b, s
- if (digitalRead(0)){
! J' G% o v& V8 i - ESP.deepSleep(0);& C q, j" i' j
- } else {
! B& O8 @- T7 \0 @ - server.begin();, Z/ [0 t! s' i' }9 F+ R
- }5 u9 f2 a! i y7 p8 M- W
- }6 `4 J3 I; S% a# C! K- k
- void loop() {
) |( V+ h4 b7 e7 K4 Q4 W - server.handleClient();' B" W, e, T; s% q
- delay(1);
& l) c5 S0 |8 c5 B1 U; ?3 F - }
p, V! c8 g! T4 O1 F$ h4 { - String doGet(String url){$ u0 }) F6 `! ]7 z2 @& C1 L* {# E" K) u
- if ((WiFiMulti.run() == WL_CONNECTED)) {
0 y% n( F7 j9 X6 X) X - HTTPClient http;5 [' {7 B \& j2 U. r
- Serial.println("[HTTP] begin...");
4 @0 ]. w. v" ^ - if (url.startsWith("https")) {. |5 d$ a$ n+ z; n7 X
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");) k* P n' B! F1 m. p- C6 ?, ^
- } else {: {8 @( Z h6 u& A! f& I
- http.begin(url);: s' z1 c7 l9 l3 h& Y
- }
" }, Y4 A: T9 F5 q4 v; X - Serial.println("[HTTP] GET...");$ m O1 p6 r' I5 \% J
- int httpCode = http.GET();9 d$ |- E Y. b# D' ~/ k
- if (httpCode > 0) {
0 z+ l: D" C- e! y3 V - Serial.printf("[HTTP] code: %d\n", httpCode);. [6 }( I/ g9 @
- if (httpCode == HTTP_CODE_OK) {
! ?1 {2 y3 |0 W; H1 k! T! n1 W - String payload = http.getString();' A7 ?' n6 g+ o5 `# v7 U
- Serial.println(payload);+ N& r& N- e5 O, w" W+ ?: K" Z
- Serial.print("\r\n");- g- p0 E) {- ~
- return payload;
) ]& h) U3 m9 j. L( z - }
5 z+ k9 y* [( n) U2 n& U - } else {# b1 n& [$ I" j4 I2 D
- Serial.printf("[HTTP] GET... failed, error: %s\n", L( u3 G% O# f9 p6 M: P
- http.errorToString(httpCode).c_str());9 W. U5 j. w9 |
- }8 f& Q) q. B( `5 Y3 N$ O) U
- http.end();
# c1 m5 q& x' T$ R6 W - return "";
3 B6 [: T0 T9 _& G - }) |" g. ^: {) ~& |
- }
; C- [6 \: ?( c/ ~; R) e; N6 O - void mainAction() {4 Y' `- ?' F- E d
- // 发送请求0 p7 d6 t' n! r1 z/ H
- doGet("http://google.cn");
& A; }3 {; t0 g7 L" @ - }" R% m |" F; r" p; F. e
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