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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)
* j/ R" i4 ~( l6 t3 ]5 M- #include <ESP8266HTTPClient.h>
- _! x6 z" F8 l. h8 f - #include <ESP8266WiFi.h>
& R# T& p5 {& a: w - #include <ESP8266WiFiMulti.h>
* `7 K/ V( n* k) [" V - #include <ESP8266WebServer.h>
6 J' j8 g: w9 Z9 Y5 k" H" ]; y( C - #include <arduino.h>: V8 I B# L' {
- ESP8266WiFiMulti WiFiMulti;
5 z3 F8 q4 l1 b8 F: |+ p9 c5 C - ESP8266WebServer server(80);1 b. d: i. ]4 G$ I# w
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";' |! W: N4 C A. A0 \" o
- ADC_MODE(ADC_VCC);+ Q+ p7 f2 U$ J: K( N Z2 q9 b
- void setup() { s8 Q/ Z* j" r+ x
- Serial.begin(115200);' h2 u! _7 g7 B( V& J/ t
- Serial.print("\r\n\n");6 E0 e. E1 U# {4 Q
- pinMode(2,OUTPUT);# k2 G3 f4 n# M% b$ K f4 G
- // WIFI- H1 @0 [, H9 y( _
- WiFi.mode(WIFI_STA);
# U/ \" A) q) r6 h - WiFi.hostname("Sparkle");
) g7 g8 a; P7 V7 N- S- C! u - WiFiMulti.addAP("wifi ssid", "wifi password");
) p; O; E& l5 P7 p' C* u - int tryNum = 15;
* z& ?7 O8 [, L" `1 {8 i+ T- D - Serial.print("Connect WiFi");: @ y2 x9 R4 _1 I
- while (WiFiMulti.run() != WL_CONNECTED) {" O! V7 g& w8 K4 B' \) V; k, n7 w
- digitalWrite(2,0);
m) h- V7 n$ V4 W6 j, l# T - delay(200);! H6 P- b- x3 P5 O' P& T
- digitalWrite(2,1);
3 k$ a* o! F, Z, w# N - delay(300);
/ I) G( r- M" V/ @* k - Serial.print(".");0 x7 d0 ]* J& l0 u' Z
- tryNum--;5 M9 `5 L3 L+ G! ^. W" t6 t
- if (tryNum == 0) {
. a4 m" N( }- R1 a1 B# d- { - // 1min
& f' g8 g$ I( E& f& q6 h" B4 ^ - // ESP.deepSleep(60e6);
9 k* v% l" T+ O4 {5 a; i - ESP.deepSleep(0);
) g* Q5 o+ E8 p0 f& z - }( U# j4 m( [7 ?
- }
6 ]' n0 f( p: V& v( Q+ ~! u - Serial.print("\r\n");; \, o7 t9 Q* J3 \! w. O
- digitalWrite(2,1);
+ m7 ^' ?9 c3 l1 b) J% c. Q5 g - Serial.print("IP address : ");
) W+ L& O) E6 C! G- i* m - Serial.println(WiFi.localIP());3 _% }; Z; o7 y/ @
- server.on("/", HTTP_GET, [](){
/ Y( r8 E/ k4 B+ _- s1 ? ~ - server.sendHeader("Connection", "close");* R6 [% S, W# L- y
- server.send(200, "text/html", serverIndex);
; j4 `- h. U, C$ v* m) J - });' C7 G: j+ ~/ L+ m! b/ c
- server.on("/update", HTTP_POST, [](){
1 O8 L1 P3 ?: r8 l! { - server.sendHeader("Connection", "close");& Z3 k! N8 V, Q, Z+ [$ \
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
$ U4 M; V& w O1 @8 R# X - ESP.restart();0 Q% Z n2 w/ ~/ O7 T
- },[](){
* y; ~5 }! {. Y2 A9 J0 Q - HTTPUpload& upload = server.upload();% N, H2 j5 K& y0 g
- if(upload.status == UPLOAD_FILE_START){6 m( B9 ^8 _. @4 Z7 F
- Serial.setDebugOutput(true);' _% Y. j! D* A
- Serial.printf("Update: %s\n", upload.filename.c_str());& p, `' u7 O2 n: S/ v; y' k
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;* [( C6 _. _) l8 ^
- if(!Update.begin(maxSketchSpace)){
" H! [5 O# l; l; j3 c6 I - Update.printError(Serial);9 K; q6 M8 W8 i4 f0 }0 S- |- o; F% ]
- }. L m* s' y7 G5 h; S- c
- } else if(upload.status == UPLOAD_FILE_WRITE){4 R/ Z7 r @7 ?9 {8 f
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
1 ^9 x9 I) l- r2 { - Update.printError(Serial);
0 I" W3 s5 W, D* k - }
: c( a. A! _! b/ ~( O# W) t3 b - } else if(upload.status == UPLOAD_FILE_END){& D/ L" V' M+ n- B
- if(Update.end(true)){
# X' k; I' n& q2 I" `& W5 A4 n - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
1 Y1 p5 z: d; t - } else {$ \- M, D0 J( M7 s7 Q
- Update.printError(Serial);. v+ r0 Y, s( A R
- }8 g, j% D7 b& { v
- Serial.setDebugOutput(false);5 H4 a) c! M7 j9 u8 \- N, J/ W
- }0 h0 q z1 R+ V6 x: M) \
- yield();' K$ Y; e/ ^ [# P
- });
& g; f% r' I' _. X - @% f: P0 W9 X
- digitalWrite(2,0);0 U$ ^6 [: b% d3 W2 X, \
- mainAction();* X9 E) b2 c+ o9 L7 n, s
- if (digitalRead(0)){* `, d6 J# C7 b6 ]( ?' B
- ESP.deepSleep(0);6 j* v! F6 d. l4 M6 K" B0 e" ]% H
- } else {' h" U4 Q# j' g( G& o! w/ m
- server.begin();! k- I+ c5 j/ d# g0 S; R
- }
% b: g/ G% R" `* `, v - }
5 @9 q, D* i7 q5 i3 t) [; \ - void loop() {' h/ h5 f" l. g
- server.handleClient();
+ N$ ~, v1 P7 a: W! @. L - delay(1);5 [7 K x$ I. V1 W: Y
- }
3 Q' m5 {: J+ s& l, _% E0 J - String doGet(String url){6 n; S: j; N; h& f, Y' Z$ J
- if ((WiFiMulti.run() == WL_CONNECTED)) {8 h5 ~) c3 M6 W/ G. h
- HTTPClient http;
* t( L/ V5 b: j+ |0 d - Serial.println("[HTTP] begin...");
2 f8 {1 p0 d4 V& `- b - if (url.startsWith("https")) {
0 [1 c# c: \2 I6 I N( z) u& }6 R, \ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
% q- T) J+ w3 S+ w7 M - } else {
% g7 ~5 ]" p4 S; v - http.begin(url);
9 ~$ ~, k0 ^. R6 {4 i/ m" [ - }
l0 J. g* e& {; L; T - Serial.println("[HTTP] GET...");3 [/ ~# M7 Z. l$ V
- int httpCode = http.GET();& y2 B0 P- w# p) r: ^3 b+ l1 j
- if (httpCode > 0) {
/ C0 v4 R( U. k. n/ ~ - Serial.printf("[HTTP] code: %d\n", httpCode);
4 i+ U' p7 t- N6 @' n - if (httpCode == HTTP_CODE_OK) {0 \) Q, W% I- Z" T
- String payload = http.getString();7 A$ M4 b) @; M6 Z3 x# f1 ]
- Serial.println(payload);
3 Y2 ?2 E- T* w - Serial.print("\r\n");
3 Z) P) _% s9 Y/ _; l5 S% M - return payload;
* }3 [2 M; L! }4 Q - }
7 V, b: |; K* Q5 y! y+ | - } else {
9 D) U: Q+ B7 I6 } - Serial.printf("[HTTP] GET... failed, error: %s\n",3 F4 A( Q; ^ \" v! D
- http.errorToString(httpCode).c_str());+ S. `' \3 e5 D+ Y$ `
- }
" E7 z5 ^% M4 P. i$ u" t: y - http.end();
7 v9 R+ q1 C+ Z1 ]$ Y - return "";
: |: |4 G- k$ d# C! l+ m9 V - }
2 u6 d6 d! k1 O4 \: Z - }
# W, B# f7 w" \ - void mainAction() {% L$ G* C: Y4 Z; ^2 n
- // 发送请求: H& A7 f8 h0 H9 A E
- doGet("http://google.cn");6 b2 b ?, y/ @0 v0 X
- }8 r& a: z( |2 M
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