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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)
7 v& ]5 T: T$ [- #include <ESP8266HTTPClient.h>
9 g3 t4 m7 V; O5 O5 ]: }2 W - #include <ESP8266WiFi.h>6 W+ L) v. P2 ~6 l0 U
- #include <ESP8266WiFiMulti.h>
: c% T J( G. d3 O5 r - #include <ESP8266WebServer.h>
- O2 d8 L0 ^" R9 ?3 m( c - #include <arduino.h>
) t3 b* o+ v8 w# D* h& S' R - ESP8266WiFiMulti WiFiMulti;
. c, k" ]8 R6 P! Q+ U0 } - ESP8266WebServer server(80);: x' Q4 _- o- ]
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";7 _% w" ~8 q$ c/ _% k- X
- ADC_MODE(ADC_VCC);
; d0 ]6 v1 j4 M - void setup() {
! s3 U$ O3 d/ ^) A) h4 [5 ^1 j - Serial.begin(115200);
' Z$ ^$ t; [7 i. p% O4 j - Serial.print("\r\n\n");1 p+ c- l/ x# c& H$ [) x! s
- pinMode(2,OUTPUT);
- b3 h [' Q2 ?/ P+ R' a' y - // WIFI
& Y* B4 G/ w& d - WiFi.mode(WIFI_STA);$ U5 k$ S+ f$ d, F1 M! G
- WiFi.hostname("Sparkle");
/ c4 ]- F' ]& e& d, h: f- F - WiFiMulti.addAP("wifi ssid", "wifi password");
s4 ], \# H' |' |8 A3 Z, t$ V - int tryNum = 15;
( ?6 N4 i6 J1 u1 @ - Serial.print("Connect WiFi");
. U4 u# P% y6 B# T; { - while (WiFiMulti.run() != WL_CONNECTED) {
$ f9 l. V& a* `+ q2 _8 ` - digitalWrite(2,0);3 e7 z7 P+ s! u7 |; R
- delay(200);
7 k4 [3 N$ q1 q6 L! q3 X' d$ R) I - digitalWrite(2,1);3 S7 n" x& {4 O B
- delay(300);
$ m) _) ?8 E5 a! R3 D+ u9 t1 v/ F( b - Serial.print(".");# R! M. ] X- L
- tryNum--;# |$ E+ b8 {5 I( {' F
- if (tryNum == 0) {! v# Z1 T5 r: g* _8 m& ^
- // 1min, `8 m* ?, U1 b4 {# U
- // ESP.deepSleep(60e6);
. {/ R/ V3 z+ i/ b! r2 E - ESP.deepSleep(0);% J8 n, Z$ x2 ~) P4 V8 j& B# ^+ l
- }
/ g* o! v7 T2 j) G) k$ _ - }
9 \; y- F$ a$ u( r& f - Serial.print("\r\n"); h/ ~) ]6 Z& i: p) E' Z
- digitalWrite(2,1);
: O8 r. n/ Y' g" S. K- D - Serial.print("IP address : ");; `* Z* f \4 l6 `2 l# ?# c
- Serial.println(WiFi.localIP());
" G% G: }- y& Z. W' g* l' X% t5 ?2 v - server.on("/", HTTP_GET, [](){
9 e+ P# M- J) `1 T - server.sendHeader("Connection", "close");$ F9 b1 u: J2 b# ?
- server.send(200, "text/html", serverIndex);
4 r* O+ b2 s9 p t+ ?, \ - });' \% F! z1 W! S0 p: a* K
- server.on("/update", HTTP_POST, [](){
! [$ a2 A/ K n - server.sendHeader("Connection", "close");
# Q- D, w S9 k J - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");8 S9 _4 d! X: q% f
- ESP.restart();
, `0 g! L3 F+ ~* b- F3 E$ [! ]5 U - },[](){+ i2 ]6 Q+ g8 j4 K: M5 I' f+ h
- HTTPUpload& upload = server.upload();
, d( P% \* n1 T5 O( Q6 Q3 ? - if(upload.status == UPLOAD_FILE_START){
: o0 L+ M; N( S* i" w - Serial.setDebugOutput(true);4 }0 B8 D/ Y9 Z( s/ R
- Serial.printf("Update: %s\n", upload.filename.c_str());
5 A4 U0 R" x. h3 W5 H5 q/ j& D3 g - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
" }0 O7 b' K4 |7 w9 j: v: s3 x: U8 Z# a- d - if(!Update.begin(maxSketchSpace)){: G$ x& N( p4 Y4 `
- Update.printError(Serial);
* j9 d" D' X, n ?& r4 C n - }* c" q5 p0 |; `6 w! C
- } else if(upload.status == UPLOAD_FILE_WRITE){
" ^1 K5 [; X) }8 i3 W$ c0 ] - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
x, I# g. ^( H9 [ - Update.printError(Serial);
! v+ ]: D) y4 V, u/ J - }! R; `% B/ D( N4 _# W1 w( i
- } else if(upload.status == UPLOAD_FILE_END){
0 ]* K' n; E; x - if(Update.end(true)){, ~& L% I6 ?- B
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
; l1 Q O0 l, { - } else {
4 z% ?- `: y' g3 A- i4 K - Update.printError(Serial);
0 a; _0 |8 G& }# c/ }7 N! j - }
' @% |. V2 r5 L6 L - Serial.setDebugOutput(false);+ `3 P+ A4 @' i
- }( ^4 I n, ~0 u7 G: a; M
- yield();
4 ]+ u6 U1 t# r% I4 \- I0 V) G - });8 M$ z6 y% G5 b( c3 Y3 b" E
- ) F5 E. z* Q) `6 d. h+ P
- digitalWrite(2,0);
2 |( Y$ v9 }6 c# q - mainAction();7 D. F% ]* R6 O/ X' [! N0 s
- if (digitalRead(0)){
4 X$ }) f7 O0 b" n6 c+ @ - ESP.deepSleep(0);
0 h) A/ [) m% R9 m - } else {
9 r0 c9 l0 b6 [; C6 j) z - server.begin();
/ X1 E5 H3 a2 h$ F! h" V* w - }
0 U! x& y8 W, |7 \+ W( j - }
" k0 E' S* i, V, K- `7 H7 v - void loop() {' K. z6 F4 I" \
- server.handleClient();
. I- F# F; g a - delay(1);
; ?3 N8 U) o; n - }
' Y2 T$ ]: Y" [5 x/ Q& B s - String doGet(String url){9 I8 P0 h' Z6 D ^
- if ((WiFiMulti.run() == WL_CONNECTED)) {9 }1 q1 W/ Y8 K8 A
- HTTPClient http;
+ t' ~2 ]0 C% W( f- ^( n - Serial.println("[HTTP] begin...");* C# B. h% \4 [- y& {8 S2 ^
- if (url.startsWith("https")) {, B) y9 ? f4 B( Y" x2 P, b
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
0 W1 t, [, p: w: X, e" L7 X - } else {
6 D( Q$ f. g; [2 J ] - http.begin(url);- ]+ o- _2 t: C; ]! t( C
- }: O! u( j* g) }8 ^" x7 q U$ p& x
- Serial.println("[HTTP] GET...");& R' f7 j- u0 ]4 [
- int httpCode = http.GET();$ J5 ]) C3 j0 ]& T
- if (httpCode > 0) {
: M+ T9 E. d6 J+ X( z - Serial.printf("[HTTP] code: %d\n", httpCode);
' E+ N: Y5 I& K- J! J/ T$ S - if (httpCode == HTTP_CODE_OK) {
4 h/ z7 h$ m- e* f$ s - String payload = http.getString();9 Q: B6 | Z4 D* Z
- Serial.println(payload);& \8 N% z1 f% l/ T* m) i$ [ h3 l( z
- Serial.print("\r\n");4 _3 m" R! V7 q; |- M
- return payload;# l n% u/ \3 h' J
- }6 H/ K. D X, u- G3 D
- } else {2 k+ F6 Y* ^9 g+ X
- Serial.printf("[HTTP] GET... failed, error: %s\n",9 D5 b$ Y' l- ]% P( T! O' M
- http.errorToString(httpCode).c_str());
+ _- v, ~. J7 _4 u - }
# j/ A# b$ r6 w# e5 E4 x0 Q; }* N - http.end();
) D. h2 [& G) M - return "";
9 {6 _/ S# q/ d" B4 ^ - }
) |$ v3 ^7 ~' ?5 g - }2 G; N7 _8 K3 T, Q6 g
- void mainAction() {" }6 h# f1 e& e% @/ m7 `6 W3 j
- // 发送请求- Z9 S' r5 K; O! _, h
- doGet("http://google.cn");3 Z2 m: G% W [6 S
- }
' J) j* J9 [& U/ R) B7 h& ?
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