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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)
6 _3 t1 o2 Z$ J7 p- #include <ESP8266HTTPClient.h>
/ m$ c* i# Q6 W - #include <ESP8266WiFi.h>- N( t5 v1 j* q6 R6 {0 f, s. Z. x: x
- #include <ESP8266WiFiMulti.h>
( C& v* W* D, e: f- l. `2 p1 ] - #include <ESP8266WebServer.h>
; ^8 ^9 d* ]3 c6 N- y - #include <arduino.h>
/ b* f* m3 c5 I' @! F3 J8 h" o0 i - ESP8266WiFiMulti WiFiMulti;
. G; U6 w* o G, m! Q* X1 @! F$ w - ESP8266WebServer server(80);
. J2 T5 q/ p2 J: [0 G# h4 } - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
3 l2 A" n" M# o: A7 b1 C - ADC_MODE(ADC_VCC);
( k \7 u6 Q. g5 U f7 u - void setup() {8 c Y# p* ^) Z
- Serial.begin(115200);. r2 H1 X# e5 y0 d
- Serial.print("\r\n\n");
3 \1 F# O8 E7 N2 m8 @- A0 z* S2 T/ c1 N - pinMode(2,OUTPUT);& n# o( }) n3 {( X0 T/ @3 p; ]4 S
- // WIFI
" K6 X. d6 N3 d& V. d* g. b - WiFi.mode(WIFI_STA);
% _" f; C' g8 V9 B+ r - WiFi.hostname("Sparkle");2 @* R$ b) j5 n4 B6 |- V
- WiFiMulti.addAP("wifi ssid", "wifi password");
# }* @, B/ y. R, j6 m* V - int tryNum = 15;
$ j0 `- s b, Q: `# z - Serial.print("Connect WiFi");* E: |5 t* }9 j
- while (WiFiMulti.run() != WL_CONNECTED) {
9 L$ M# |( o5 G. w6 u6 M - digitalWrite(2,0);
' H! W' N0 A6 i( f, Y - delay(200); D# W: r3 N5 A
- digitalWrite(2,1);
$ M( a4 C2 H$ y& W$ c - delay(300);
2 V1 T- W/ ^# c9 n - Serial.print(".");6 J3 M8 k9 W# K9 \1 G
- tryNum--;1 @3 g* J9 K; Q: {. }9 T
- if (tryNum == 0) {+ x9 s7 {1 C; @3 w/ ?
- // 1min5 z' K6 B0 L6 |! |
- // ESP.deepSleep(60e6);$ L8 E) z. U9 |* @) p
- ESP.deepSleep(0);6 ] q V3 L J. M7 `
- }! c T, W2 C$ K7 `8 E
- }
2 i: l+ P8 n) m, ^/ @ - Serial.print("\r\n");
, V$ |4 I- k8 `! ]" P$ z - digitalWrite(2,1);( g# z" r9 t. ]: H2 N3 `
- Serial.print("IP address : ");( Z$ ?, L" M# D# o7 R4 ~9 P s
- Serial.println(WiFi.localIP());/ s; H6 v9 q9 W! d: g o' a
- server.on("/", HTTP_GET, [](){
( A- }* A# S$ f1 J: I* u) F - server.sendHeader("Connection", "close");" e3 u5 O: y7 H, l! [& h* c
- server.send(200, "text/html", serverIndex);
; F e- u" S% P$ A: n2 `/ y - });: r, X) C- w& E$ ^2 n
- server.on("/update", HTTP_POST, [](){9 r( Y% E) V( q
- server.sendHeader("Connection", "close");8 j9 s) j# C( \) G) W. w$ r% P
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");% C# P u' [! L: C# Q% m% O
- ESP.restart();$ S1 h6 R6 i+ }+ M
- },[](){
: Q" m9 C; y0 h) h# G, y/ H7 g - HTTPUpload& upload = server.upload();. s, Q- j* n2 Z7 ~7 S H
- if(upload.status == UPLOAD_FILE_START){
5 L, e& P6 v7 G- l - Serial.setDebugOutput(true);. W8 q: s" n9 J* F7 f
- Serial.printf("Update: %s\n", upload.filename.c_str());
$ a% ?# C/ n% H% r - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;7 y( g' [) N4 T4 A8 t m7 O
- if(!Update.begin(maxSketchSpace)){0 [6 Q! D1 _6 S: R
- Update.printError(Serial);0 S; h7 m/ ~0 g% }5 Y
- }3 ?5 k. o4 ?# x
- } else if(upload.status == UPLOAD_FILE_WRITE){0 S# n/ V4 ?+ W4 N; v) W
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
" w/ T! U1 Q" r - Update.printError(Serial);
* k1 c* v+ a* f1 }5 Q - }
6 @) E; D; J" {! S5 a- l - } else if(upload.status == UPLOAD_FILE_END){% }" ^8 T" k- k9 g7 [7 i6 h
- if(Update.end(true)){
4 z/ ]# B- {! a - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);% b" A* V+ X9 Q5 K8 i w0 c+ F
- } else {! C8 y7 O$ ~$ ^; y
- Update.printError(Serial);
1 p% m- x4 K& \3 M8 v' K3 x/ s2 M3 D+ G6 F - }
# g' q4 R0 P5 S - Serial.setDebugOutput(false);
: ~: r8 V; |* T; R+ [ - }
- b" h& ]0 p: X" r$ Q - yield();
9 P0 d3 V; C! L g5 m( r - });2 y9 @4 p* G' |2 \% r% G' I3 a
-
' s7 ?5 `! `3 S- v( p' y1 n4 h$ b) G - digitalWrite(2,0);3 ]1 r' v4 r6 ?: R
- mainAction();' f$ l5 Z$ B3 J1 t ]' d
- if (digitalRead(0)){
* x5 m$ n% G6 R2 ^, I/ N9 G - ESP.deepSleep(0);+ N# A, Z% }2 D' z! [
- } else {9 d1 U4 b* q- m1 u( N- k
- server.begin();
1 y/ S( Y; q6 d" x' s& U0 W - }2 k: }9 R5 P8 y& _& w( |
- }
; P' m9 A* g1 q; W( N - void loop() {' T6 Z" B& _ ^& M# x. ~
- server.handleClient();- I( y. l/ _( ?
- delay(1);( l( h: b+ O' j) }2 z
- }
; c8 s! Q$ }+ R& b8 v - String doGet(String url){" W" j! G$ u- _/ ]7 B( R$ F& I
- if ((WiFiMulti.run() == WL_CONNECTED)) {# E# ?! ?. R) R2 l
- HTTPClient http;
- n" D0 Z9 s( G9 H' E+ u } - Serial.println("[HTTP] begin...");/ D3 F3 E2 H& i# n" J [% Z9 a
- if (url.startsWith("https")) {
* s8 f1 d# q. u" Z+ ]* Z( L6 }! k7 ` - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
" L0 p4 Z. V$ Q1 n+ W1 H - } else {8 Z$ ~+ _ l: K" r
- http.begin(url);
8 U' e, e" I+ ]3 J; V0 R# V% o8 a. J* w - }7 G* D0 X0 y' ^" ?2 U k! H
- Serial.println("[HTTP] GET...");
3 ~0 U: b* `$ z8 c. j5 k o& }& H0 B/ O: P - int httpCode = http.GET();
[) x8 f8 g) I6 ?$ `0 b9 R - if (httpCode > 0) {+ x& P5 ]# I6 D" K8 r+ D/ O
- Serial.printf("[HTTP] code: %d\n", httpCode);
. [6 H" f% _' i - if (httpCode == HTTP_CODE_OK) {
, [% N! s7 ?0 l, H - String payload = http.getString();
% J2 m3 E4 N8 D* `! q* R - Serial.println(payload);
' }* u" u; p; a j6 F$ j: \4 m - Serial.print("\r\n");
7 C1 R8 O6 u* @4 D8 {* I+ M J) F: K - return payload;) `6 `! l( s7 A# F
- }
; }$ @& z5 n3 B4 f3 s1 B) s - } else {
+ Z" ^4 ~, @$ q( P2 a - Serial.printf("[HTTP] GET... failed, error: %s\n",8 D8 l! _: L- T3 I
- http.errorToString(httpCode).c_str());# K+ A; x9 {# v7 P
- }
" v R0 g" p7 P8 N" K6 C4 h% Z& u - http.end();
8 F: q. o9 r. W8 q8 _ - return "";
; e! |% H1 |$ ` - }
& u# K2 S" o* }5 } l - }
& Y1 f Q8 g* _6 G3 Q - void mainAction() {
) P9 D/ Z( e& ^% m: D) i - // 发送请求" P( @" @/ r9 }: z" r7 c
- doGet("http://google.cn");9 K! T! l$ w; T# x% I: l4 E; L+ T/ i
- }
' Y* c0 E3 o7 ]: O- n4 e( j! p
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