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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)7 f) Z0 F. Z) U, `
- #include <ESP8266HTTPClient.h>
7 `; [3 j# F( |" e6 \) F5 H - #include <ESP8266WiFi.h>/ I( k; Y2 |# O. M' d+ N
- #include <ESP8266WiFiMulti.h>5 h) k# s% m% H9 ?# d7 @
- #include <ESP8266WebServer.h>
3 d& u' A* d3 D* D, u - #include <arduino.h>) E; ?: P# Z! c% ?/ L- z
- ESP8266WiFiMulti WiFiMulti;) u9 y7 D" X& {
- ESP8266WebServer server(80);
* z5 r+ C7 O8 }5 | - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
" F, {/ z& t ~) e) l- Y3 u - ADC_MODE(ADC_VCC);
- ~5 Q5 @/ X+ `3 r7 m3 `3 ^) \; n - void setup() {
" A8 r/ w( U L - Serial.begin(115200);
9 n$ g5 F# T' ^% X - Serial.print("\r\n\n");' v* {1 |9 S3 T, Q2 L7 }9 w0 i
- pinMode(2,OUTPUT);" |9 g# T9 D! }% M
- // WIFI
t8 U2 o6 j! j3 X1 s% ?+ n3 [- j - WiFi.mode(WIFI_STA);$ B0 N, V1 U& Y# }
- WiFi.hostname("Sparkle");, }, o0 t8 f$ @ t! \, D' h' ~' T$ Y
- WiFiMulti.addAP("wifi ssid", "wifi password");3 n2 N: j( H/ K+ q7 m
- int tryNum = 15;) e5 ?4 m7 I% z. e) R
- Serial.print("Connect WiFi");
8 d! {. s5 A! e _8 n5 [ - while (WiFiMulti.run() != WL_CONNECTED) {" z7 M/ \4 N5 t
- digitalWrite(2,0);& v8 i# ?( l3 y( A% @4 J& F' z
- delay(200);
3 e0 j. c4 E; u" |3 s9 I I( N - digitalWrite(2,1);% g& _2 C8 K4 m& E
- delay(300);
1 O8 R3 q7 n$ u8 n; w5 t& n - Serial.print(".");$ {# Z1 }- W ^% P2 ?
- tryNum--;
# y2 _: ~# [) V$ f# o - if (tryNum == 0) {
. ?+ N% d( D1 a: L* y8 v* Y - // 1min6 A' z# [8 N# T& |" j
- // ESP.deepSleep(60e6);% w3 j6 q- t) L% u7 a- M3 ^5 _6 u
- ESP.deepSleep(0);
+ z. p# e! Q3 A# q6 S/ k, [ - }
- g/ Y5 l+ G4 \3 m3 H - }
- @; h4 H2 N; k3 H8 D) l' b - Serial.print("\r\n");: F# l0 I6 \7 W! A8 R m
- digitalWrite(2,1);
1 x% V9 o4 f4 @: [3 j: \( E8 \ - Serial.print("IP address : ");
7 R9 @ Q% e, s1 Q3 \4 A - Serial.println(WiFi.localIP());) e! j9 X0 u) ?0 C+ A6 M Y- z" s
- server.on("/", HTTP_GET, [](){& w' o( Y& D* j: `% t
- server.sendHeader("Connection", "close");
" B# g( f6 @9 `# y) O) p - server.send(200, "text/html", serverIndex);
; A# u- f* t+ J9 C7 w; o - });, w" s: Y& u# C, \( y
- server.on("/update", HTTP_POST, [](){
. | F) K) _0 w - server.sendHeader("Connection", "close");
) d7 I! z! j. k* T% F2 T1 { - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
/ ^* T2 k& Y: s - ESP.restart();
9 d7 [( p7 b) y# |2 ~* [! Y2 h - },[](){" i0 c% u9 l2 J) C( l
- HTTPUpload& upload = server.upload();
" u6 @% E6 P7 T2 A: Q4 A - if(upload.status == UPLOAD_FILE_START){0 o: N1 G$ w" F7 S; r* {" o0 V
- Serial.setDebugOutput(true);* R) ]4 q4 b. [, G" r5 T
- Serial.printf("Update: %s\n", upload.filename.c_str());; J, p! x8 v0 @7 _
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000; o& ~& A, }0 `( ]
- if(!Update.begin(maxSketchSpace)){. n/ B% [+ ?, n2 K
- Update.printError(Serial);6 p, v6 I7 \, a9 J; g3 }
- }0 U( h7 A& [& j1 l" k7 C- J8 _
- } else if(upload.status == UPLOAD_FILE_WRITE){
' P' `) {/ l6 {; n6 f- @# Q - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){! j3 q! p, h: M# ~
- Update.printError(Serial);
( c3 |1 Q- C+ J$ y7 x - }
$ B1 c- s! u2 W i - } else if(upload.status == UPLOAD_FILE_END){
" u) I5 X. M1 n0 z2 B& I( B - if(Update.end(true)){( d7 z/ \+ s) r
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
" R1 h5 L7 B$ ^9 C- q - } else {
# N' _0 M" [8 `5 P8 d( s& ~. X( c# V - Update.printError(Serial);
* I% Y C! g z( E/ u8 s" K1 t - }
0 n$ B% _! s2 S9 D+ i - Serial.setDebugOutput(false);* w. i# m% b( l$ Q
- }! H1 e6 V H: v5 \4 @. P
- yield();
+ E: d( x. o8 B! `/ \' ] - });$ ~6 c- Q) C/ x7 b( U
- 0 G' a4 Y" j8 b3 `
- digitalWrite(2,0);
1 G1 @; C1 P, L4 f$ z4 } - mainAction();( s' ^, i% ^: }( G' B8 b
- if (digitalRead(0)){( j* H- J+ _& X# z1 |$ [
- ESP.deepSleep(0);
/ _" n# L1 i$ B: D - } else {
# H8 F I# {5 l, d& s5 ?2 `% h6 v& i G - server.begin();8 _) N, i( F, z/ Q: o8 \5 v
- }
+ _' W( f) a$ E - }
4 h! J4 Y- r( n7 l - void loop() {/ w! Z6 M) i. T# o4 W8 W: z0 P
- server.handleClient();
3 u# b. ^7 u) ]3 l - delay(1);
1 o- B: O( J6 \ - }: W( n, a6 c0 e+ z' k% M6 W, y
- String doGet(String url){
8 S+ J) {7 {2 k2 S% D - if ((WiFiMulti.run() == WL_CONNECTED)) { L* d# g# e- {# H
- HTTPClient http;
8 |: t- D; p E/ @, c) [ - Serial.println("[HTTP] begin..."); G& D3 ?3 `0 e
- if (url.startsWith("https")) {
5 G, {" V3 }6 X! A; |0 [ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
w! J% o( [$ q( V - } else {
+ ~0 f& ?9 V* g) [+ D& a2 l - http.begin(url);% O7 Y6 r; a! X4 _2 x' C6 k
- }
/ d3 e, S5 W3 b% N6 \& T; _ - Serial.println("[HTTP] GET...");% S' w2 ^) F4 B
- int httpCode = http.GET();
$ X% o$ M3 a% B0 ?6 c& J( }5 L - if (httpCode > 0) {
' L: Y/ g! W B6 S/ B; X* R2 y+ W$ e - Serial.printf("[HTTP] code: %d\n", httpCode);
8 P: f, N! U7 G# ~- Y& m# C. ^" v - if (httpCode == HTTP_CODE_OK) {5 ]5 `4 P7 |) f% H, C" V$ O
- String payload = http.getString();% S- s# @2 g7 U
- Serial.println(payload);6 G; s1 Y7 g& U2 f) I% f
- Serial.print("\r\n");& e) n3 Z8 j8 y, Q: T9 w6 V
- return payload;
: \7 z0 \4 p( z: e - }1 |2 O7 b _. r- y. F/ e( y
- } else {
/ p& S& K0 T! y# k1 Z - Serial.printf("[HTTP] GET... failed, error: %s\n",& W& E- a; C( G' V0 i6 @; Q! l' H
- http.errorToString(httpCode).c_str());. J- Y3 T: p& I9 J3 d0 i
- }6 }8 K% T& L" j# N6 w4 s+ E
- http.end();
3 T9 [0 R4 W# D( x2 c2 T% W* _ - return ""; p5 t' W" B' ~3 r
- }
5 c/ z% i: m5 ~6 @& {$ a: |& ] - }
' l( r" O) d! X; f( w% u - void mainAction() {
( P2 z" H# F4 n/ { - // 发送请求
$ Z+ K+ v M( P6 n3 \ z - doGet("http://google.cn");4 G9 ^" L S- q5 U% g2 w. X
- }7 A' D+ z) |, l a' X
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