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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)$ V3 O( V" K* z8 j0 g9 ?4 ~+ Q) E
- #include <ESP8266HTTPClient.h>
' ~. q4 y/ n& Q - #include <ESP8266WiFi.h>
+ P# i% P2 A; t1 E - #include <ESP8266WiFiMulti.h>+ T1 m i% _, f
- #include <ESP8266WebServer.h>7 R6 k9 ~$ J3 ]0 S
- #include <arduino.h>2 T5 g/ e1 H& j% g2 Y# u9 U
- ESP8266WiFiMulti WiFiMulti;7 B; S$ P" n1 U7 J
- ESP8266WebServer server(80);
: a( z: K+ F/ u U% m7 P) d/ q. \! u - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
' H; q5 m/ X" b6 P0 v - ADC_MODE(ADC_VCC);2 f, q) r- ~9 V
- void setup() {
# l* `& Z1 C4 t& l- | - Serial.begin(115200);
( q2 e8 M/ g/ V% n' Y - Serial.print("\r\n\n"); Y1 j- R- O \4 Z( }0 b
- pinMode(2,OUTPUT);6 f8 C9 C& e2 A; M8 c' E* o" ]
- // WIFI' J, v' |3 h8 O& u# x9 D
- WiFi.mode(WIFI_STA);' Q: H: B+ p# q6 f
- WiFi.hostname("Sparkle");6 W! B( w3 Y% l: r! H
- WiFiMulti.addAP("wifi ssid", "wifi password");6 Q* @& P% |, I$ L) Z' d% H
- int tryNum = 15;
2 _; i( [+ K* X/ p - Serial.print("Connect WiFi");5 s \3 S) ~5 p! ], r
- while (WiFiMulti.run() != WL_CONNECTED) {4 F: N! K( x6 a) M' W! B: i$ ]4 G5 }
- digitalWrite(2,0);
/ @' t- s& F0 A* S) X( {' C - delay(200);
% D* o6 Z# p# X! W% Y, H; g$ i - digitalWrite(2,1);" Y* T) |9 f0 H+ n: G2 K3 _% i
- delay(300);
) A; L, B: {+ i& ^% H3 [/ U - Serial.print(".");( ]2 b/ z$ a6 M+ X" Z
- tryNum--;
. S" S' r3 p- T) _. N$ R - if (tryNum == 0) {
; {( o- N) V* _- ~2 @ - // 1min
, \- O. Q+ o$ }8 s# A* T( S - // ESP.deepSleep(60e6);
' m" S) d/ Y) q& b - ESP.deepSleep(0);& g6 K) {, e. y2 R" D8 V/ I9 S. F
- }
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- Serial.print("\r\n");2 c) A. K: _ A3 ~1 b' B$ W) K; M4 \
- digitalWrite(2,1);
7 ~# @7 V7 l+ ~0 Q7 G* w2 b8 h - Serial.print("IP address : ");" r- w+ E( G; y4 u1 `$ X
- Serial.println(WiFi.localIP()); l6 y: W0 n6 p* Z: q
- server.on("/", HTTP_GET, [](){$ Y( U, E( d9 Q8 a7 Q
- server.sendHeader("Connection", "close");$ T% x! u% _' Y; V) R5 D& |
- server.send(200, "text/html", serverIndex);9 K, D+ x* Y& d. s
- });
4 l" w- M8 A' R; Q - server.on("/update", HTTP_POST, [](){3 g' \% L% I ~
- server.sendHeader("Connection", "close");- B8 M7 k! G+ ^$ |5 }* n
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");4 V+ \# N ^$ Q, J" v
- ESP.restart();/ l% m5 l7 j. s1 \
- },[](){
% B9 c) J2 A& C- G" d - HTTPUpload& upload = server.upload();
I* t6 s: ?, S4 ?' ?: Y: S - if(upload.status == UPLOAD_FILE_START){) ~( h7 a9 T; t \( ~ x$ ?
- Serial.setDebugOutput(true);( h2 K1 \6 e0 L; g" m6 I
- Serial.printf("Update: %s\n", upload.filename.c_str());
! g3 ^; f1 o" R) K. U E - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;4 h5 m" q! Q* B; _3 |% D
- if(!Update.begin(maxSketchSpace)){( h1 |6 E5 K# Q5 Y7 C
- Update.printError(Serial);' E% ^/ _9 u% D1 \
- }
3 ?6 l9 \, S6 P, a - } else if(upload.status == UPLOAD_FILE_WRITE){
% w7 z. z( I0 }: [ - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
6 n3 S; y! A8 n ^; u- V3 H1 V - Update.printError(Serial);2 `# ] S1 {8 B2 H8 C0 E( A- h A
- }
( L! T5 V8 @; J% y) Q0 n - } else if(upload.status == UPLOAD_FILE_END){
: O- ?, ^( d R: {2 }' K - if(Update.end(true)){5 B: v0 Z& M5 L9 v
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
4 T. e) |! N; r2 d - } else {; s" `3 f5 I) d3 J$ G
- Update.printError(Serial);
- |8 X2 O$ J$ ~+ A - }+ s; N' o7 X9 r" e, A1 l7 I. A
- Serial.setDebugOutput(false);
7 e' ?7 S& X' C - }9 T$ j: `- b6 `7 A2 e/ Q0 A
- yield();
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-
5 j0 I7 M* F; W! \4 S6 u8 T7 `3 ` - digitalWrite(2,0);
7 s. S3 m) T* `: t( U! \ - mainAction();
2 s! W- F( S f: k) ?. ] - if (digitalRead(0)){
' J+ l3 x$ E1 P) h' l* ~6 k - ESP.deepSleep(0);
4 v' S! t* a+ x' A* S: [+ d) R - } else {1 j, l2 d" p; L" l% k# X0 d
- server.begin();
( ]- P' q8 f4 [% c- T6 a+ P# F - }! r1 h' N2 W8 e
- }
1 Q {, S. R0 C1 b: {: w0 j - void loop() {# B' A: u Y, x( L) _, Z. l, O
- server.handleClient();6 ?& J9 ?" h8 A
- delay(1);7 }6 L W8 L) l9 D5 @: y+ K
- }
2 X" O. O! O3 c4 [' f4 v# E - String doGet(String url){# V% M! y2 A5 ]( `$ s( {6 H
- if ((WiFiMulti.run() == WL_CONNECTED)) {
! f* U$ |0 ~. d. V) Y - HTTPClient http;
* e7 h% f/ p) ?: G* e y% |$ u2 s - Serial.println("[HTTP] begin...");* R4 t# f! E% g2 R2 F
- if (url.startsWith("https")) {- v- j9 t9 v* K9 [. `- ` u7 a$ i
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");) |! a) J, m7 o
- } else {
' z5 l: @0 i6 |' X" v9 M - http.begin(url);+ _: \$ ^8 ^* l | @
- }: I/ D7 w" _# ^* F( S
- Serial.println("[HTTP] GET...");
7 R% `3 P: ?, M6 L( w7 C - int httpCode = http.GET();
3 h: c2 {) O* e, N z0 y1 b - if (httpCode > 0) {/ m" u8 |5 ~7 {, |" s9 X
- Serial.printf("[HTTP] code: %d\n", httpCode);1 H2 _2 ~ [" K* r S" [ h
- if (httpCode == HTTP_CODE_OK) {
7 S' v- b* D/ i' W: j! e( Y - String payload = http.getString();
& l5 K* V! w1 h& n - Serial.println(payload);1 |: W+ u7 e- |/ ~
- Serial.print("\r\n");2 n2 d/ t; ], r! U
- return payload;
- [0 ~, I/ y3 T0 ^ - }
1 v: d# H3 \7 w' B - } else {
9 ] h0 l! O2 k9 p' Y# [ - Serial.printf("[HTTP] GET... failed, error: %s\n", _4 L& [1 w S p
- http.errorToString(httpCode).c_str());+ a' r* e9 U* ?4 c0 {
- }& m8 f# w6 V3 U' q( e1 w
- http.end();& ~0 I* k" J9 I3 U& a4 M" H9 e
- return "";
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- }4 ]0 b- p8 H! f4 n8 D, G$ R
- void mainAction() {
) t$ M# J3 \# W/ c" P - // 发送请求 ]7 v) l+ R/ q" t$ F/ H1 c/ x
- doGet("http://google.cn");# g8 i! L4 m d- @: V0 f6 M
- }6 j8 ?( P5 F1 y- J1 X
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