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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)2 x Y& x, m9 P* N* Z
- #include <ESP8266HTTPClient.h>
( u. ^ g0 Y- V: w; u - #include <ESP8266WiFi.h>
) \. O/ N/ @% M, W; h ^ - #include <ESP8266WiFiMulti.h>. @$ H) U, F/ B" N6 E' y+ \
- #include <ESP8266WebServer.h># ]- m. m+ n# l# h3 ]3 B4 F- [& R
- #include <arduino.h>
+ p W5 P' c7 l2 N: c( G; A) S - ESP8266WiFiMulti WiFiMulti;. N/ t4 p- o! [$ h/ B# W
- ESP8266WebServer server(80);, E5 B3 [, u& o2 i
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
. f. w; C2 f% M2 `+ k0 b5 Z - ADC_MODE(ADC_VCC);
+ Q* ]4 d9 G# t. M' q U1 @ - void setup() {0 M. B; h! j' u: A
- Serial.begin(115200);
3 e' ^$ B' A/ ~ - Serial.print("\r\n\n");
" ]: W5 @2 H& d& U, C1 { - pinMode(2,OUTPUT);
3 i/ E; N4 p3 F" F3 {5 T+ U - // WIFI( U9 J1 ~2 h% a: N1 m, W
- WiFi.mode(WIFI_STA);9 d# W! r2 Z& g5 a. Y0 W& h
- WiFi.hostname("Sparkle");
0 a) Z7 x- G" s - WiFiMulti.addAP("wifi ssid", "wifi password");) I! K9 z; h7 R2 s% G
- int tryNum = 15;
) g$ V0 K& G; s5 S - Serial.print("Connect WiFi");. @5 a6 ~, g2 }5 z
- while (WiFiMulti.run() != WL_CONNECTED) {1 b5 G+ C- [7 q. }, c* s
- digitalWrite(2,0);
6 ~9 \1 u, t. a+ h) b - delay(200);
6 F `0 b/ k! i8 O7 I" ` - digitalWrite(2,1);
, z! r: b" W' X- q - delay(300);( E1 G5 |' }6 y" @: F3 q
- Serial.print(".");
( j& w" A# `$ r" Z- j - tryNum--;
E z3 v! U( R - if (tryNum == 0) {; w6 _* H5 E* [( R' |- h! t$ o
- // 1min
, E- L6 b# M; F3 U% w3 S) v - // ESP.deepSleep(60e6);+ x C. \/ ~: T [2 h- P- x
- ESP.deepSleep(0);
9 ` v! b) @ a# r H1 {; y8 i+ b - }
+ `6 |7 s/ R1 j7 K$ C* m, y5 n - }. R9 G7 O$ I2 |3 G! e2 K5 y/ R
- Serial.print("\r\n");
+ b) `! ]" J2 ~4 ~3 _' O3 a% k' t - digitalWrite(2,1);
' P7 X8 ^7 A. |; Z - Serial.print("IP address : ");
1 K- l4 |! s& k. B - Serial.println(WiFi.localIP());
o0 T0 R, j9 o3 r; K1 | - server.on("/", HTTP_GET, [](){8 _$ D4 V6 P, H; h2 H, \, `5 _
- server.sendHeader("Connection", "close");
, _5 Z& M4 ~! h, X1 n9 U - server.send(200, "text/html", serverIndex);
4 ?, |% w, W" _; @8 l) c4 p - });
3 }- e; g, _5 A2 o3 X# L, ? - server.on("/update", HTTP_POST, [](){, j2 e$ E8 m6 @4 U/ V
- server.sendHeader("Connection", "close");
% S7 J" M0 w' G! i" z. Y5 J+ A L - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");0 J/ M5 m( d% t' Z: w
- ESP.restart();
: u2 r1 F/ W P( W- F9 c! g+ f - },[](){' \% r! A% D3 J; x3 W
- HTTPUpload& upload = server.upload();. {9 q& ]5 ^' S
- if(upload.status == UPLOAD_FILE_START){' j v0 H5 x+ z6 o. w' l7 x' e
- Serial.setDebugOutput(true);9 h2 y) T3 V2 a3 p1 k# W
- Serial.printf("Update: %s\n", upload.filename.c_str());- M9 k) A, l* E- M/ B) z/ i
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
8 T5 k/ B) L5 c - if(!Update.begin(maxSketchSpace)){9 C* C4 f' F6 H# Q( d
- Update.printError(Serial);
$ O: K2 l: G" T+ P& m5 R - }
# R' O# ^3 J3 h+ w( Q1 j8 \/ Q6 G - } else if(upload.status == UPLOAD_FILE_WRITE){3 ] F. s2 i0 r) |/ H# W
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
@. u3 i) [9 k' s - Update.printError(Serial);5 ^7 |: k( p) a4 a0 i; R
- }' p4 O7 l' U$ v. v: x
- } else if(upload.status == UPLOAD_FILE_END){0 O( ~& |0 M0 s8 c
- if(Update.end(true)){
6 h6 x# M$ w9 z, U9 n. c: Q - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
5 ]4 E! j |' T: F n - } else {
, @ i5 z1 R* V g - Update.printError(Serial);
' C" q/ D1 t7 }4 t - }
# m1 a7 f! h. m2 i+ v$ x' V" b - Serial.setDebugOutput(false);
1 o1 n6 M5 B( W3 H8 {! u& b2 z' r+ p - }5 |! G+ W& N" J( S, ~4 A+ {3 z' F
- yield();
2 x' {9 y% L: L) m, | - });! c! |: T. E0 }8 F* Z( p1 m5 z
-
0 X% L, e2 y' e$ A* Y - digitalWrite(2,0);
/ [, s. {6 ]2 \ - mainAction();6 D4 `6 U, @4 j* N
- if (digitalRead(0)){; [ A, h: W" |/ w+ u
- ESP.deepSleep(0);1 K- a2 ]7 m6 G
- } else {, j& E. n( U# R+ ]" u
- server.begin();
, J9 E0 d, t" x' x5 A" y9 h - }
, p( r2 t2 q6 S; Z - }9 S/ L1 E8 o9 p" I
- void loop() {0 z* y! o z+ a' u
- server.handleClient();2 J- A+ \8 J4 x. O! F, {9 \
- delay(1);8 V+ y' q- }* Y2 m5 g. @3 C# g0 ?- N
- }0 n' p& ^6 I0 Z" i% e+ U$ S5 W% j
- String doGet(String url){( |! p8 N) F ?0 V+ K% j
- if ((WiFiMulti.run() == WL_CONNECTED)) {* x7 u$ _* _# q3 t) N( {/ h
- HTTPClient http;
7 \8 N, A. B$ u- s. y* c - Serial.println("[HTTP] begin...");
# k( C+ V+ n0 l% g& w4 Q* f - if (url.startsWith("https")) {' n4 {, U6 l/ E( W8 u6 D
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");* [4 g! A7 l7 ?1 i2 b! v
- } else {
. P R, m' x$ z$ j - http.begin(url);
% {! q8 S# P6 g - }
2 I1 \- ^, X, l1 D2 w( G - Serial.println("[HTTP] GET...");+ A: {5 A8 r1 V5 \. ^1 D
- int httpCode = http.GET();. Z+ J* W! `7 h0 U+ Z6 ]' _
- if (httpCode > 0) {
( @, C+ s. u# N7 i* N4 e0 K5 _ - Serial.printf("[HTTP] code: %d\n", httpCode);
3 w. U/ V8 Z2 x3 } - if (httpCode == HTTP_CODE_OK) { B, i% L, B/ o* @% I+ f: X7 V2 m& R
- String payload = http.getString();
) k- f: C* C S - Serial.println(payload);5 `9 }1 I2 n3 f) H0 Z) N3 a2 k
- Serial.print("\r\n");( I* s$ [5 R4 k# o! ?
- return payload;8 E& U0 j4 }5 w# Q+ V; Z
- }" K- [7 S" X! c# V
- } else {2 S# y9 l! p8 M- g
- Serial.printf("[HTTP] GET... failed, error: %s\n",
9 d7 d, @& r0 Z- g - http.errorToString(httpCode).c_str());$ e ^4 x; J# J4 r
- }9 P1 u: i* K' ^7 R& K" e
- http.end();" [9 w# o- |% g
- return "";
; \4 ^$ J0 j% [+ l1 }3 y0 U. ~ - }# q! G& D# }& C/ g
- }" n6 o+ m5 {2 g1 G; ~/ J
- void mainAction() {
9 j$ H2 U# i0 v+ g - // 发送请求
* i) ~4 x @3 R0 k9 J" B. S - doGet("http://google.cn");
3 S6 R1 P- E2 | R! B - }+ b5 Y1 ]' q8 U
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