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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)
* m1 ^/ G1 V* V% o/ H3 Y a- #include <ESP8266HTTPClient.h>
/ a8 c* S4 P# V! t4 ?5 U - #include <ESP8266WiFi.h>4 A, J* W0 j5 u5 H, J/ E1 E
- #include <ESP8266WiFiMulti.h>) ^ w% D) Y3 F9 ?, Z+ w
- #include <ESP8266WebServer.h>
, V C0 d+ @+ ? - #include <arduino.h>
' i! X0 `; W# T4 V3 Z- d - ESP8266WiFiMulti WiFiMulti;
# T2 O) C; {; M) a0 O9 y- S - ESP8266WebServer server(80);
8 D2 U1 W& ~# N; \5 q4 N; ^8 Q - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";- E$ u1 R1 o+ p( m1 W p, f
- ADC_MODE(ADC_VCC);
# Z* W: v! h @. y) c) s) P - void setup() {* W- D# C6 r: q. F. ?9 R
- Serial.begin(115200);
, b; c n4 b" }8 a7 D: s - Serial.print("\r\n\n");# K& a! T6 n+ s& z* d. q8 r3 X
- pinMode(2,OUTPUT);0 O e) F* M+ G- C
- // WIFI
* B7 \; {+ M( i* b9 ^ - WiFi.mode(WIFI_STA);
" T$ N8 ~" `+ f4 g4 b/ @; ?" i - WiFi.hostname("Sparkle");& d# C, a1 q7 i& Q
- WiFiMulti.addAP("wifi ssid", "wifi password");
5 M, s+ f* a) S1 ^ - int tryNum = 15;
0 K3 K) _9 [" A) j8 B+ Q+ M$ l4 e4 K - Serial.print("Connect WiFi");, Q; e% j8 l" s- N6 ^; l( s) Q5 c: z
- while (WiFiMulti.run() != WL_CONNECTED) {, S! I f# B/ Z
- digitalWrite(2,0);
0 A) ^/ D2 B7 w }" m/ c% x: g* r8 ^7 [ - delay(200);7 ~( a# z Q+ I6 V9 F, |4 r
- digitalWrite(2,1);7 k# f' v* D8 T1 m4 S( v
- delay(300);0 M7 a7 A6 ~. M) Z* }
- Serial.print(".");$ l. J6 ^5 t! Y/ n8 S8 w5 O
- tryNum--;8 @" J% t' }% Q# p5 @
- if (tryNum == 0) {1 x" e7 v! r$ a) w7 P/ O2 Y; E
- // 1min: F6 G9 a" ~* u3 }5 S; I
- // ESP.deepSleep(60e6);
) \3 x0 G4 M$ r5 L - ESP.deepSleep(0); }2 i' v2 G: s3 m k
- }
6 c3 Q a! f, L - }5 R2 _ s% y* s) ~0 g: N% ]% ?
- Serial.print("\r\n");
' }- `+ S9 t# u - digitalWrite(2,1); T3 t0 h4 E8 @) f
- Serial.print("IP address : ");( \, Y$ k8 z7 W
- Serial.println(WiFi.localIP());' b/ l6 J3 X! Z" a8 G
- server.on("/", HTTP_GET, [](){
/ {3 Z- Q3 x8 ]9 p - server.sendHeader("Connection", "close");' M" v# A; {4 U( m% R( F, V7 e- d
- server.send(200, "text/html", serverIndex);
' d3 Y U2 z z" d - });! F5 D; X2 ~" O B# W0 I
- server.on("/update", HTTP_POST, [](){
5 ]' j8 T2 ~3 W - server.sendHeader("Connection", "close");
3 q- T! z# L- X o' E - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");' N2 V4 u/ k& c$ |4 q0 p7 h+ X7 ?
- ESP.restart();3 d6 D/ \: Q2 g( J J& a
- },[](){
1 o; ~9 k3 x) Y4 ?9 w - HTTPUpload& upload = server.upload();3 u# x: a; W1 t6 \. J8 h
- if(upload.status == UPLOAD_FILE_START){0 r* U* D8 y7 }; p
- Serial.setDebugOutput(true);
: c5 y# d/ u) t: Q1 | - Serial.printf("Update: %s\n", upload.filename.c_str());
% ?7 G8 L5 B) I1 ?2 {+ N - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
1 V; s! ^- @# \& e - if(!Update.begin(maxSketchSpace)){
9 e' G+ J/ Y" @) o: B - Update.printError(Serial);
3 x9 x" C8 ^2 e4 U/ t* N# } - }, k! b9 a& z8 A6 r
- } else if(upload.status == UPLOAD_FILE_WRITE){; O A5 o! g' r+ }' O6 C% _
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
& x8 j3 d1 l) f0 j0 N4 S, p$ i1 u - Update.printError(Serial);
% `# _$ Y4 _0 @ - }2 ]) u3 g' ~$ A3 S
- } else if(upload.status == UPLOAD_FILE_END){7 z9 I! a6 B5 x; `: |# R. J$ |
- if(Update.end(true)){ c4 z: U, B% w- ?& g3 {5 A4 U
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
2 ]7 A" s3 p2 k) f4 G% u/ R - } else {
8 O" S" V5 G7 Q! @, G3 v0 u - Update.printError(Serial);" z( w' k ]! i' J& X
- }) `& x% D) ] ?
- Serial.setDebugOutput(false);" G* m+ Z! h' L7 O4 j* F* A
- }1 }+ [4 t% a X
- yield();% I5 ~4 ~8 N) Q( d# r( o% ` X
- });
1 M. u' f. X+ {, e0 r - ; [+ Z& x) _5 w( L. ^
- digitalWrite(2,0);8 M! n; {# X0 s$ h
- mainAction();+ P+ X6 F3 V5 L. R# i$ |+ h
- if (digitalRead(0)){" Y4 a0 `* K' ]+ h' v- g/ [
- ESP.deepSleep(0);
& U) h- M y8 a% A) O' z - } else {) P; y3 W& _" w! Q' d; @5 e
- server.begin();+ E, S5 d* I0 R
- }
, C$ ~1 d& @/ l8 `6 S6 y - }* W8 ~; S- o \( N$ }
- void loop() {
" D% O \ b+ K6 y - server.handleClient();1 r! \; r+ P; d7 H* C5 N. S. {
- delay(1);8 r$ l* q; R/ }
- }
; l% m; N3 Q$ k - String doGet(String url){
# q# X2 J9 k" q" Y, L' Q8 ~8 J) M - if ((WiFiMulti.run() == WL_CONNECTED)) {
" U" e, t9 n4 p/ |+ C; P9 r - HTTPClient http;# l7 ], S9 M7 e# k% T( \
- Serial.println("[HTTP] begin...");) b/ O/ A% g( ?8 F0 n5 g2 q+ d
- if (url.startsWith("https")) {3 c) O% r# m$ b' L
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");3 S' e8 @1 a' L% g
- } else {3 Q! K+ c9 y5 s e2 y9 U5 H( B
- http.begin(url);$ L6 B7 A( I# m6 _' D
- }) R3 e; A# f* M* Z Q0 C
- Serial.println("[HTTP] GET...");/ m- a0 }$ Q) L. H+ u1 I, R1 I
- int httpCode = http.GET();
4 ~4 B9 t; U. S% C7 r - if (httpCode > 0) { U% I# h) N$ _+ z4 H1 k j0 P
- Serial.printf("[HTTP] code: %d\n", httpCode);
9 z! C% Y- M" J. ] - if (httpCode == HTTP_CODE_OK) {
3 {) \ z# V+ j5 e( J: n - String payload = http.getString();
, W9 M3 ~7 l, u$ [6 c- C - Serial.println(payload);. _5 X3 i: H! l* p
- Serial.print("\r\n");- T5 B- b1 m/ R- y
- return payload;0 O% S$ q4 w% @$ s
- }
9 ?! v, j. B& M$ Q+ U8 B - } else {
& M8 x4 o* j2 D% k - Serial.printf("[HTTP] GET... failed, error: %s\n",/ I5 ^3 E' O* m5 P. J3 A2 D. N+ z7 P
- http.errorToString(httpCode).c_str());
5 b q6 F; k8 f - }
6 A0 b- d* S+ V; [% \- F - http.end();
- J# S& }3 E9 h& w- Y" T5 p6 ] - return "";
$ _5 G& U, I. B0 h5 v/ d3 Z - }
3 V$ g, D+ O/ s" O - }
' x: e# \+ j! w4 }* k | - void mainAction() {
6 Q# a$ G9 D8 _6 t6 E U - // 发送请求
! t# ~, J6 A6 w v% I - doGet("http://google.cn");
& ^5 s( e4 f' I/ Y/ Y! r$ G+ R# n - }
& {* j9 C5 S8 r0 B' E2 y
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