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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)3 `1 h% P# r. |, O: P
- #include <ESP8266HTTPClient.h>
4 u: _ ^: G7 D - #include <ESP8266WiFi.h>
4 k6 i5 `2 f! ?, \- W2 @ - #include <ESP8266WiFiMulti.h>$ j! {! q$ Y' F- M6 [
- #include <ESP8266WebServer.h>
! D6 E* G, \ E( i v7 b+ m d: O - #include <arduino.h>7 O9 o* [) G2 N$ q: {' ? `
- ESP8266WiFiMulti WiFiMulti;. D6 n: S6 h6 s( B
- ESP8266WebServer server(80);' Y9 J- n" c" U9 D9 ^: B
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
* b7 N2 A4 ]& J, r+ i: o- M) W - ADC_MODE(ADC_VCC);* ?4 ?1 G. |7 O8 w5 _. w R
- void setup() {: E" u9 u- j% F2 v2 d# P3 w! Y
- Serial.begin(115200);
* g4 ?2 A! t; A - Serial.print("\r\n\n");) g3 S* x+ Y3 ?' A* p6 Y1 b5 T
- pinMode(2,OUTPUT);
/ s, q& H) A H- H - // WIFI+ }" K6 O% E/ [- {! l
- WiFi.mode(WIFI_STA);
/ l" E# r% _: P( E8 Z' {! |* t - WiFi.hostname("Sparkle");) f. u3 b2 e8 } S( Y. L
- WiFiMulti.addAP("wifi ssid", "wifi password"); `; H9 }4 S2 x6 ~5 b q3 [
- int tryNum = 15;
0 U" q3 b/ ~6 F# { - Serial.print("Connect WiFi");' q: K. x4 h% C6 f) V
- while (WiFiMulti.run() != WL_CONNECTED) {
( B% d! V& r1 ~/ x; \( q - digitalWrite(2,0);
& y9 R& l1 T+ p& Q% l - delay(200);$ w& x q5 e) s- L
- digitalWrite(2,1);
! q/ i9 G+ Z0 [) H5 X+ t1 b - delay(300);
% x2 B( v2 N/ [6 q% U - Serial.print(".");
$ w4 y' T$ s% r& T; |5 I0 P - tryNum--;
$ J* A8 H& M4 _$ ? - if (tryNum == 0) {! _6 z3 V( C1 n! O: T( @2 k* G
- // 1min
7 K- M% [! H: A/ U. C3 O. s7 ^ - // ESP.deepSleep(60e6);: u% J' `- |1 O: u2 O) z
- ESP.deepSleep(0);
7 m1 g( y) h; |- f D - }) Z! Z& O3 p P0 e1 j6 z
- }
! d' Z6 F% Q- o5 r1 C0 O - Serial.print("\r\n");! b* J3 m. f5 q0 |5 o; H5 c2 l) i
- digitalWrite(2,1);
$ w, H- ]- r- n; S; Z - Serial.print("IP address : ");; D( }7 }$ Q& V
- Serial.println(WiFi.localIP());
# g9 a: v- g6 ] Y9 ?$ @5 [, I - server.on("/", HTTP_GET, [](){
0 c8 Q# v/ L% P) x# [) P - server.sendHeader("Connection", "close");+ G+ H, U" [/ p
- server.send(200, "text/html", serverIndex);4 H! I) T& ?5 Z* u+ B) v* _
- });/ c$ {2 U. ?7 h
- server.on("/update", HTTP_POST, [](){
$ \+ t' J! V4 o. x - server.sendHeader("Connection", "close");. N+ O0 }3 Y, k
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");: x1 @6 x9 |0 j0 Q2 z, z
- ESP.restart();: i$ m! s" `5 s, j9 s' F
- },[](){
) y, S: Q4 G* w9 `9 L - HTTPUpload& upload = server.upload();
+ C: H: A3 R2 d. H; }, { - if(upload.status == UPLOAD_FILE_START){6 P7 z" M$ S) C- m0 W1 ?/ T8 }
- Serial.setDebugOutput(true);# `; q. o. r3 c! ~. h
- Serial.printf("Update: %s\n", upload.filename.c_str());6 r1 P" ]4 z- e3 [; o1 ?
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
# ~9 d5 W: b' c+ }* c+ X+ `$ z# ` - if(!Update.begin(maxSketchSpace)){6 B9 l' l( l5 f3 f
- Update.printError(Serial);+ J f" u3 a4 U( B& W% d- |
- }
) O" `$ ^3 L2 `' t% Q) H - } else if(upload.status == UPLOAD_FILE_WRITE){
! g) T2 L1 }8 e; L" Q, ?! b- V - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){: ^* J$ B5 k. v5 L$ o+ \
- Update.printError(Serial);
6 D" e( N2 x9 Q2 e7 t7 C - }
8 ~1 j* g8 ^+ B4 h6 D" g; A - } else if(upload.status == UPLOAD_FILE_END){5 z; Y4 U$ ]* j3 q. k8 B
- if(Update.end(true)){
" y# ^$ u+ u3 C% u - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
- N3 l/ D: Z) m, h0 @$ V7 w - } else {
: w3 N; W( r6 @* l. E - Update.printError(Serial);
! x: T* O8 R0 m3 m; W! k9 p3 ~* ~ - }8 Z: k4 M0 S2 k+ t. [* i
- Serial.setDebugOutput(false);
1 Z+ ^& [3 f3 P4 L. A- n' n5 K - }
4 g% b8 O) H9 B& h7 @8 S. q5 U - yield();
2 e+ L g% N1 d: q" X - });6 o8 c. y+ P6 y& f
-
7 T; A9 @8 W( m( F7 H - digitalWrite(2,0);8 Q8 x+ X/ @; Y/ r2 C, @! k/ V
- mainAction();6 H! v! n5 n% U- s: ^3 r3 H
- if (digitalRead(0)){
4 O) z0 @! w6 A, K+ k9 W% u& [ - ESP.deepSleep(0);
/ p) ^( m* q P/ J! ] - } else {7 d2 u8 e' G) U2 l7 T* y8 ?
- server.begin();
4 S' s( K t; n) s: [# d- S - }, H( k3 [+ J2 i0 U+ d8 z. }
- }- a J) ]. Z E$ f& H
- void loop() {
) J8 [) K% @) R1 b1 B+ M( N' j6 X - server.handleClient();, H' y( l3 ^; Y9 N+ \4 Q$ A
- delay(1);
$ ]7 A% z5 q# t8 @ - }. _: K+ L1 i" T/ Z% p
- String doGet(String url){9 L. X" a9 P7 K; L; a1 E) ?$ n
- if ((WiFiMulti.run() == WL_CONNECTED)) {
( L+ i9 i4 h) Z- E0 E! {9 X8 I$ _ - HTTPClient http;
1 K; T8 }! J. U" s2 }! t - Serial.println("[HTTP] begin...");" v1 H4 G* p$ D2 V" u u4 V
- if (url.startsWith("https")) {
$ t, w4 D- x& n3 e. k: `- U+ w - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");! Q) v7 e& j; n% j: o8 l% e- K
- } else {5 \; U/ v* B+ W8 [
- http.begin(url);- i* h9 U0 m, ]1 Y" k
- }
7 X& U( y1 p5 [# j9 [ - Serial.println("[HTTP] GET...");
9 C/ |: }8 S3 i9 G @6 t - int httpCode = http.GET();+ d$ n. V: E; B5 O+ g5 s
- if (httpCode > 0) {; E0 V$ ]* p+ ]1 ^6 k% e: E
- Serial.printf("[HTTP] code: %d\n", httpCode);
/ ?1 D; G$ P+ z7 E4 w - if (httpCode == HTTP_CODE_OK) {
, G* D5 s# C n+ }/ ]4 ^ - String payload = http.getString();
. h) ~" A; L# G - Serial.println(payload);
t4 R4 Y! a6 X% O' o4 R8 O* D3 I/ x - Serial.print("\r\n");, p# W. d Z) f1 Y6 c; ]9 _) ^
- return payload;0 R. v4 M$ g Z* r6 H4 N; r) K
- }
; k$ z6 ]. a6 j4 `; X - } else {8 U; \2 j: F9 D
- Serial.printf("[HTTP] GET... failed, error: %s\n",
9 V# o: s+ E$ G7 o7 M9 g' c: @2 q - http.errorToString(httpCode).c_str());
& ?0 u/ i; G' Z2 c" p' L - }
/ d% F h: K2 Z- W - http.end();
* e2 U( g, M8 X' N. H7 o3 x - return "";
' i7 g- _) K/ Q5 |) g% W - }/ t f4 b" C9 k' m. ]& g
- }
/ e/ L. B1 W( a# ^ A* H - void mainAction() {
! X9 a! J) r2 ^$ [' c1 G - // 发送请求
0 C: a2 }( [$ \$ s - doGet("http://google.cn");
- `$ i2 B1 v0 k - }' x8 G1 ^5 ]" [% P$ B+ ]
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