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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)
& b! E5 A- N5 \, H* a5 A- #include <ESP8266HTTPClient.h>) x! D3 ?% a* r, q$ p z) q
- #include <ESP8266WiFi.h>: i6 M8 L- F; O
- #include <ESP8266WiFiMulti.h>
& I5 z1 @/ ^% d5 |$ i: ~7 s - #include <ESP8266WebServer.h>
S1 ?% c& n$ i - #include <arduino.h>& R% N$ u, \& J l+ t& X
- ESP8266WiFiMulti WiFiMulti;5 k" d* d6 V3 X
- ESP8266WebServer server(80);- W* N) k2 P) V2 C& X
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";) T J' H+ Q2 p; i: }2 N" w. {
- ADC_MODE(ADC_VCC);
# {( r8 O8 U, n2 i - void setup() {. n# Y8 E% m' F$ E% g( z6 Y+ n
- Serial.begin(115200);! x3 _6 V3 Z, y# D- ]5 r8 p3 X
- Serial.print("\r\n\n");
" _& j) P$ G" d E - pinMode(2,OUTPUT);9 U7 M7 I, B7 ?! V
- // WIFI
0 Y/ d6 C! e& b0 p4 M: J( [1 r - WiFi.mode(WIFI_STA);
2 B" M3 L: N7 ~( c; q" ], t) S& s6 v - WiFi.hostname("Sparkle");
. \% h' S% A' P) D - WiFiMulti.addAP("wifi ssid", "wifi password");' r( j. @6 i$ m. ^6 f9 M
- int tryNum = 15;
9 b0 {3 E5 v! q' y - Serial.print("Connect WiFi");6 W7 W& K! p2 I% C
- while (WiFiMulti.run() != WL_CONNECTED) {
/ W, N& J4 }+ e1 Z/ ~ - digitalWrite(2,0);
- H4 B6 O8 ~* O2 v" U* q% Y0 } - delay(200);
- P" V7 p5 c' G Y9 w* ] - digitalWrite(2,1);. F" \% N. ]8 i& p. L
- delay(300);
9 f9 n) \! d: X$ o6 ?- Z5 I - Serial.print(".");# |# M0 l* B) J4 |
- tryNum--;6 k! K/ \9 C% b1 D% _9 P
- if (tryNum == 0) {
* O& _1 J, B' b7 T: O; s4 L) l# a - // 1min
' M; [ }) I0 N - // ESP.deepSleep(60e6);
2 S0 }* ^* Z- L6 O - ESP.deepSleep(0);: K$ V4 X: f' @+ p9 \7 i
- }
% P" ~' s I2 ^ - }
( P [( N4 z* f6 G - Serial.print("\r\n");8 \7 f5 e9 N6 B
- digitalWrite(2,1);* q3 b) n5 S; S5 R
- Serial.print("IP address : ");
3 O0 Y$ h6 X# e# E0 n- ~8 B - Serial.println(WiFi.localIP());; F# Y+ |( X0 T; N( S; W, w# x% l
- server.on("/", HTTP_GET, [](){
8 D3 G3 ]5 G3 Q3 Y9 B# p( E9 J - server.sendHeader("Connection", "close");
, y1 U6 M2 e& {; [/ z: C# V - server.send(200, "text/html", serverIndex);
1 p7 A3 P! S/ t2 z5 _% p8 X) j1 ` - });
$ F1 N. r) ~/ O8 n& k, r - server.on("/update", HTTP_POST, [](){2 G7 I, g5 o% B8 e0 s2 A
- server.sendHeader("Connection", "close");
^( |" b3 b2 o+ c3 F. o" I - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
6 K7 F4 x* ^, x- c( |5 `: N - ESP.restart();1 Z. h& [2 c- h
- },[](){; [. h! @: d p& J8 X7 I, z" o
- HTTPUpload& upload = server.upload();
y; a) d" r# ]' h1 u4 p3 P - if(upload.status == UPLOAD_FILE_START){
% ^9 X |" d4 g - Serial.setDebugOutput(true);7 n W1 y; m, ?& i
- Serial.printf("Update: %s\n", upload.filename.c_str());
% v# p3 z, ~( J: ~8 f3 M+ i - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;7 Q) X0 H6 v( }9 e; E* D
- if(!Update.begin(maxSketchSpace)){
3 [7 n3 L' Y- P - Update.printError(Serial);
, q$ {) l# [ D1 d, ~ - }# Q/ z5 k0 A) K8 U9 z
- } else if(upload.status == UPLOAD_FILE_WRITE){0 F- q R% r. C5 {
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){: K; P6 F5 |. c5 m1 R: X( h6 [
- Update.printError(Serial);+ _8 u" d* i6 B' `& l# x
- }
' i: o6 U7 k9 C. Q9 {. M - } else if(upload.status == UPLOAD_FILE_END){7 y: v( z+ x8 F
- if(Update.end(true)){; e9 \) ~3 O9 n( K Q2 o) v- B5 p
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);+ Y( U- W' b7 k+ Y( { _
- } else {
) i& i6 F8 b, `: R2 k H6 \: T - Update.printError(Serial);- h( J- z, b+ ]* s/ @- I
- }
) o4 g% v" D0 p4 k$ y - Serial.setDebugOutput(false);
3 Y5 S0 m6 ]1 u, T3 ~* G* U4 z - }
1 T3 }4 y% _5 v6 O - yield();; p0 C; u0 a p" x' P
- });
7 C! l* B8 y! m3 B$ B+ p' H! J - % e9 w, ^6 X: r n* o
- digitalWrite(2,0);
) \2 ~7 C6 T F% A/ \ - mainAction();% w, @5 ]3 A# v- E; l: A( J2 k
- if (digitalRead(0)){
# E, V2 e/ K7 j3 n, L - ESP.deepSleep(0);
2 u& h5 M# l8 }7 F - } else {
$ e6 y* E+ g& e J2 F% N& a - server.begin();
: q q' N+ W$ `& l! X7 e - }
0 U0 {3 K3 ^; y& D - }
2 V. M( U5 X2 `# [6 m/ \+ f - void loop() {/ M+ S; g: W( Y* b
- server.handleClient();- n8 H7 W: O0 ]4 T
- delay(1);6 v; l# X' h i4 j7 j; g' J
- }" f1 ]# H# j. J8 h. s
- String doGet(String url){$ Y( W7 h7 {. J' O
- if ((WiFiMulti.run() == WL_CONNECTED)) {
) h, J! r5 B7 C- }- s) W, {$ S - HTTPClient http;
) ~" ?5 V6 U& a+ t - Serial.println("[HTTP] begin...");- ` O( D( S- v, s" Z6 ^
- if (url.startsWith("https")) {2 F/ P! W( O5 r5 A. _( z% |6 I
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
! Y* K1 b. i8 G4 F/ C3 ^3 P6 D - } else {; l8 _5 [' o3 g* ^9 _- l9 t1 \; h I
- http.begin(url);
0 C0 G. G# |: _1 L; a5 M# X) a - }
% E; v3 A& [1 D6 u - Serial.println("[HTTP] GET...");
0 Q; v: b6 T9 c4 }; X - int httpCode = http.GET();0 i# }/ [# t) h' K8 h/ g9 p
- if (httpCode > 0) {" T' F; v& ~4 v i2 P( `$ I- Z
- Serial.printf("[HTTP] code: %d\n", httpCode);0 g5 O1 K( L+ I) W2 f9 Z" U+ Y
- if (httpCode == HTTP_CODE_OK) {- _! }+ ?* i/ P3 {4 D+ G8 j
- String payload = http.getString(); o" y( n* L8 F
- Serial.println(payload);
1 o" Q! y" o/ k& P$ P& p" | - Serial.print("\r\n");( Z: l) p& ]. d* {3 f/ p2 P
- return payload;. P* n7 q( a! } \. c9 _
- }
3 m2 @: P) S1 i8 e0 X5 o- I' l - } else {
5 J" l$ ?8 H3 d4 U q3 a1 R - Serial.printf("[HTTP] GET... failed, error: %s\n",
$ P& _+ {/ G6 B- P - http.errorToString(httpCode).c_str());3 r3 o" f! J2 x7 j$ C0 H& B$ W, ^
- }0 F3 N2 R: @% L' {
- http.end();) E \ A. |7 }$ k3 Q
- return "";
* t. K: ~9 Q: U# I4 L- x+ f - }" M$ x& R/ G5 M" c" [+ ~7 t
- }- x! z/ w$ h g* i# _: T- U# j+ F
- void mainAction() {9 m) ~" Q! ? w; E
- // 发送请求3 O, x# T; @& Q- C( Y4 C8 k
- doGet("http://google.cn");
# l6 b+ Y) i- e2 d# p - }$ ]. @1 a2 S+ w" v
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