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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)
8 b- C7 j' g8 q- #include <ESP8266HTTPClient.h>
+ c# H# W" w1 }/ o4 O5 v3 n - #include <ESP8266WiFi.h>* {$ I. w$ O! F6 f; s* {
- #include <ESP8266WiFiMulti.h>: ^( z1 X, T8 q- I z7 m: U
- #include <ESP8266WebServer.h>
+ g' |4 X5 {+ \: y* u9 R - #include <arduino.h>, D- o8 y% G2 {' V T
- ESP8266WiFiMulti WiFiMulti;- ^+ C3 m: _9 l( ]" k
- ESP8266WebServer server(80);
1 J; x3 V# b/ X3 m - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";! E, ^, }, @) k' Z
- ADC_MODE(ADC_VCC);! M7 |+ D8 L& K* V
- void setup() {
. R8 u! l2 z x9 F! {1 X& t" A - Serial.begin(115200);! w1 v M/ E& ~4 |/ C( g, b
- Serial.print("\r\n\n");$ a* V0 @# F9 T% L: t
- pinMode(2,OUTPUT);
: b7 D6 w+ \1 n - // WIFI
3 d6 w, ?2 d$ j( H$ D - WiFi.mode(WIFI_STA);) c8 i0 \) J/ I4 l" f/ ?
- WiFi.hostname("Sparkle");
3 g' u5 P: c/ T! e1 U - WiFiMulti.addAP("wifi ssid", "wifi password");; k: I D/ l/ g: d$ |
- int tryNum = 15;# h% K7 \1 i9 d" K. Z8 Y
- Serial.print("Connect WiFi");! V* [2 g) S# i4 u$ k- Z
- while (WiFiMulti.run() != WL_CONNECTED) {
- Q; N* G: k5 m" b* {* b - digitalWrite(2,0); a& v: \4 Z% V) E, |5 ~
- delay(200);
. b# w$ v% O/ }, } - digitalWrite(2,1);+ E4 D7 k C: B- G8 k
- delay(300);
; D0 @% B, i. {, t5 }7 D - Serial.print(".");- P) } A3 A1 n3 O2 R2 {
- tryNum--;
( \+ m) |2 B' V* V - if (tryNum == 0) {6 ^9 F3 q" m- U0 d, N* [- i
- // 1min. _: _! ~& f% a/ N
- // ESP.deepSleep(60e6);3 p. k5 _ I3 V3 e4 C$ d
- ESP.deepSleep(0);/ b" D- w' f6 N* ?3 ?' m; N
- }6 f, ~5 `4 f; Q" `: u4 a* C
- }
- r" P% ~: } B" w- j - Serial.print("\r\n");2 e, c/ u$ X- U8 o+ i- P6 W
- digitalWrite(2,1);
0 q/ \7 [* G% D0 {$ i - Serial.print("IP address : ");) k' K/ Q7 J5 B J' h; J% t4 C
- Serial.println(WiFi.localIP());
* ~! E/ [( s/ f; o - server.on("/", HTTP_GET, [](){
& B3 b2 P' X* n) v - server.sendHeader("Connection", "close");
* L0 [3 R c, l s - server.send(200, "text/html", serverIndex);
# g$ O* t' o; u1 R3 ~* v - });
\/ }; b6 J3 @3 M - server.on("/update", HTTP_POST, [](){* o; U- N' |- ~- a
- server.sendHeader("Connection", "close");: u" p" p; B& b# F
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
% n) q7 v3 M! P - ESP.restart();5 S# b5 _) P# i. M
- },[](){
+ M/ \! `, @. [( O- D4 P - HTTPUpload& upload = server.upload();4 ?/ L% u2 l8 e& H$ f
- if(upload.status == UPLOAD_FILE_START){& e% p/ F b _8 Y0 K( }$ H. D
- Serial.setDebugOutput(true);
; H: n+ E$ c- | V5 F1 p' O/ J - Serial.printf("Update: %s\n", upload.filename.c_str());, ^% s( q9 Y2 g7 n
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;5 y1 C( p- a, f \* \5 r' p
- if(!Update.begin(maxSketchSpace)){
1 ?% P5 c' T4 Q, c) k- _# G - Update.printError(Serial);
1 L3 q% s& ?* Y( V8 I; x. r( w' j* T - }0 ]$ \- L. t. A6 A
- } else if(upload.status == UPLOAD_FILE_WRITE){$ x* v! R, r1 O6 V3 N8 d
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
9 O% [7 n5 \' X3 g b! T - Update.printError(Serial);
: d' F& R& f$ F2 ] - }
) L1 H. D" k& r - } else if(upload.status == UPLOAD_FILE_END){
; M+ c! R D& g7 b# _ - if(Update.end(true)){+ }- ~/ d0 ~# t8 {6 W9 P8 t. U
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);+ S/ n. s% z! {: N
- } else {
9 u+ }! m) E% H1 R2 P& | - Update.printError(Serial);
& u. S' G( r2 g7 p - }
/ p t4 I8 e! x0 {) P2 H - Serial.setDebugOutput(false);0 h7 d$ O5 O$ @3 w+ {0 O* T- k2 Y
- }
4 b0 ?$ m' J( c$ |2 J s7 h - yield();
- `" j) U+ ^- x! B( m1 I2 [3 \3 _/ c - });# ?& L6 B* y0 U/ | q
-
9 N2 H' L) j7 L! B+ S5 D5 S2 h - digitalWrite(2,0);3 S! m. S8 f8 Z# ~+ j
- mainAction();" Q9 H8 @! o0 J: J" M1 ^5 J. B* w
- if (digitalRead(0)){; h: G9 k! G! V$ z
- ESP.deepSleep(0);0 z# R0 W6 m/ B% J8 B
- } else {$ s3 r/ y6 v% e5 v; ]
- server.begin();
% ?7 W# h- ?2 [6 D* b - }3 A5 r( W/ }0 Y( W) R
- }
2 G$ h4 e% }% k2 K1 t - void loop() { H0 Y. k" l$ u0 k+ e
- server.handleClient();
- C5 m4 Z/ X1 s+ O/ [ - delay(1);
: d H5 k: _9 ?/ Q# Y8 X" D6 d - }
( h- X9 P% j) ?5 I - String doGet(String url){
3 f$ x( J7 B5 l/ x' f0 D/ b - if ((WiFiMulti.run() == WL_CONNECTED)) {
, P0 c5 S+ Z6 i - HTTPClient http;' u* y( t6 K/ P+ O& _1 D
- Serial.println("[HTTP] begin...");6 m$ z7 U5 P* h7 |
- if (url.startsWith("https")) {
9 p* n: l$ h; y. h0 e+ k - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
6 v9 f* P7 ^5 ~; G - } else {
% z! I0 _1 m4 J' L# |7 h - http.begin(url);
2 a/ |4 A$ G2 n) N, l4 e$ ` - }4 h3 {- w$ I9 _( Y
- Serial.println("[HTTP] GET...");
0 }0 ~! Y) p Y% K; Z- l8 { - int httpCode = http.GET();: _, e/ U1 p z. l6 ]5 r
- if (httpCode > 0) {
, l* D0 G4 o; i6 b# D - Serial.printf("[HTTP] code: %d\n", httpCode);# h" c+ L( ]6 x% h
- if (httpCode == HTTP_CODE_OK) {
% P6 ? d- X0 i - String payload = http.getString();
# d: u" {. P9 O4 O - Serial.println(payload);
: G3 ?6 J) Y2 ^4 J, b. T1 o - Serial.print("\r\n");
3 _! f0 Y( Y0 j* |& D7 @ - return payload;! e. A! j, p2 l( b0 T0 E8 l
- }- C g) P, {$ J, n5 d
- } else {
( _% m# u6 M( Y, W3 q9 p" @; g - Serial.printf("[HTTP] GET... failed, error: %s\n",' y5 [4 v2 z+ Z
- http.errorToString(httpCode).c_str()); R& Z9 D7 Z9 X8 u
- }
! o" `& t% H% k! M* Y9 K; {+ ^% f - http.end();
% E4 j# K! j/ L9 d" ` - return "";
6 ^! l7 p3 [$ P7 R8 i5 C9 s - }5 O8 z" }+ @! P: _- W5 x" C
- }1 z8 T3 h% ?2 k0 T9 v1 ?$ j: i' e
- void mainAction() {: J7 D# c! @6 B% V- f
- // 发送请求
, z: @- |/ H+ x2 o - doGet("http://google.cn");
1 A. g2 H6 H y- D - }+ I' y" ^% h2 T- ~
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