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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)
- T% b; L Y, I8 V9 J" r! _) f- #include <ESP8266HTTPClient.h>7 b5 Q% z) I% Y$ e) ^
- #include <ESP8266WiFi.h>1 x* @& ?4 d- E, U: ]& E& U
- #include <ESP8266WiFiMulti.h>
# M2 \* J/ \( p) b3 f# ~. U - #include <ESP8266WebServer.h>
* R1 R+ O6 E! l' G$ G% U - #include <arduino.h>
* O+ J* x, W( d8 Q4 n8 Q - ESP8266WiFiMulti WiFiMulti;! ]+ \( F& i, D. d
- ESP8266WebServer server(80);
' k1 I+ a; d8 S% D3 S2 ^) O - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";& C+ S& |8 H6 o, o1 g1 |
- ADC_MODE(ADC_VCC);! Y5 b# z; s* A) l7 c
- void setup() {
& R9 ]0 K7 T/ _/ h3 [9 _3 B4 ? - Serial.begin(115200);
- ~, D1 g5 P5 I+ l+ f/ [8 j @) t - Serial.print("\r\n\n");0 ^" X$ k; A$ `0 @6 k
- pinMode(2,OUTPUT);% D- Z# T) f1 a. e1 ?
- // WIFI; J8 t5 Y" }/ A1 P
- WiFi.mode(WIFI_STA);" |* @* P& }5 n- c& C- s
- WiFi.hostname("Sparkle");
6 {0 Y/ J0 p# g4 T - WiFiMulti.addAP("wifi ssid", "wifi password");
/ f0 A, e( Z/ x$ I - int tryNum = 15;1 W. }4 |) d7 l/ h' u3 T: i
- Serial.print("Connect WiFi");
/ G f& J$ E; A6 A0 ?* H3 T& Z& N - while (WiFiMulti.run() != WL_CONNECTED) {' o* T. q. U4 D; c6 g, x
- digitalWrite(2,0);2 Y5 Q+ ^/ \; i
- delay(200);; i/ [4 a+ g7 G g: S% V
- digitalWrite(2,1);* O W, U0 g7 c8 @5 Z1 E: \
- delay(300);+ k1 r3 P# \1 p- D' v0 q# q
- Serial.print(".");" b2 F7 K: {( L6 k4 M
- tryNum--;
) U+ _4 @% z* P0 L$ `% k - if (tryNum == 0) {: X) D( n5 t( A; u5 R* W5 Z7 a
- // 1min* V5 R$ m) x2 B# L9 J
- // ESP.deepSleep(60e6);
W7 A, b* N5 N - ESP.deepSleep(0);
( u3 B+ W/ k% y, L7 ]# I/ { - }
4 n6 k1 Z3 V9 J& N( M% n1 S4 A - }# W0 d$ H1 i- n# Y0 t7 G' V. Q" E
- Serial.print("\r\n");7 i8 i: h( r T& U
- digitalWrite(2,1);
. v4 X' u$ i B# ?, T! o - Serial.print("IP address : ");
) x" J" @% G% t4 C- U- Z - Serial.println(WiFi.localIP());7 g' }1 m) q+ l0 }0 L% g/ ]) B! R
- server.on("/", HTTP_GET, [](){
6 E/ m8 o2 Q0 l. T& l7 a - server.sendHeader("Connection", "close");' Y/ d& \/ G+ ]% X" m
- server.send(200, "text/html", serverIndex);
9 L" ~2 A+ m. M3 z; z- D6 e - });" v0 c, a) |# {9 N" Q
- server.on("/update", HTTP_POST, [](){" w7 A: O* o: Q0 n! A7 b, F8 a6 d
- server.sendHeader("Connection", "close");
+ Q6 b. `% I+ | - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
) B2 m0 A" p0 l - ESP.restart();
* t' R: p: K- A4 y6 e - },[](){
\" I! z4 {0 W8 ~& M - HTTPUpload& upload = server.upload();
: p$ m5 {4 \7 O/ | - if(upload.status == UPLOAD_FILE_START){. e. L7 m1 ?8 o$ P- X9 \# k
- Serial.setDebugOutput(true);
, q% c* ]' x* v" |# K! ] - Serial.printf("Update: %s\n", upload.filename.c_str());' r E# \/ ^ j& I! Y
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;# W/ u3 f, {% i, b! i1 m
- if(!Update.begin(maxSketchSpace)){
. i+ U M3 \% b1 a - Update.printError(Serial);8 x, D- r6 i( c9 A( G" v( [
- }: `$ Z5 @9 E' J. h3 C6 B- P
- } else if(upload.status == UPLOAD_FILE_WRITE){
' j8 `5 R% f" r( ]2 p - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){- f3 V! J X9 c" ]5 b
- Update.printError(Serial);! Y8 N, b6 y1 N" I0 R. {
- }8 s) x4 w [* a1 l1 }6 e- v
- } else if(upload.status == UPLOAD_FILE_END){* H% p* \; a h' s! m
- if(Update.end(true)){
" j# w2 r( w: h8 ?. B @ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);1 D6 z6 W- }+ c3 ?" ~
- } else {
- w4 H5 Q: p! R. p - Update.printError(Serial);# V [ t% Q) F9 |2 E2 P% ?: p9 k
- }; I0 I0 {8 p. P# ~% M! |; Z
- Serial.setDebugOutput(false);
! Z) V+ O/ G; j3 [& _/ a - }
0 r& F" [' p* x/ R1 o7 d! X! K - yield();
- H% J0 ? |' {9 U- x - });7 }) @- \2 S* H7 s0 i( w
-
' [! |& f' ^" o9 {6 n. W - digitalWrite(2,0);- [- X e' d( O7 G+ M( g2 B" C% m
- mainAction();
' f+ Z) s( F+ c( h6 |' {: e - if (digitalRead(0)){
J& g" {1 Q7 u* `) t' y) } - ESP.deepSleep(0);
0 t7 Z5 j, S4 K( [6 z _8 K% O - } else {. I) V! M" f) ?6 e# x. Q
- server.begin();
/ S5 J( l5 E. q# u8 M) S - }
2 r& u, E) X ?$ p( T3 Z - }, l; a: B! D% e! Y
- void loop() {
* N; _/ ]' \: _: Q( ^+ T - server.handleClient();4 C3 d7 Y3 p; _4 S7 T1 i
- delay(1);
- X" m2 J" X2 P6 l) M" _/ V - }; e- D8 z4 n6 A/ Y/ ~9 M8 Y% R; j
- String doGet(String url){
# N5 ?( n) x% H2 H/ t+ X - if ((WiFiMulti.run() == WL_CONNECTED)) {
1 a* k' E# Y7 ~! z, w6 z) r - HTTPClient http;
o4 o) |1 t+ J - Serial.println("[HTTP] begin...");. I6 [' V- `7 E/ \) }, Y' O
- if (url.startsWith("https")) {
( M, u' E m1 @, |3 |. l - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");, O3 K. @2 K0 o
- } else {; z; ^* i. W; R
- http.begin(url);
: t* b8 s+ F0 \ - }( }9 A* r. k. X* i1 z! h0 k+ L
- Serial.println("[HTTP] GET...");
9 f* W0 I8 \& x/ t7 z - int httpCode = http.GET();
) w/ U( I/ y1 I) V+ ^5 r - if (httpCode > 0) { | [0 N. C, B6 L3 e8 Z/ B3 q
- Serial.printf("[HTTP] code: %d\n", httpCode);% \& v" R k; J' d+ m
- if (httpCode == HTTP_CODE_OK) {9 v s2 {- V' I6 f. z6 E7 R
- String payload = http.getString();+ \% N) Q* x, h6 G
- Serial.println(payload);
" @/ I3 C" @/ Q* `' d - Serial.print("\r\n");/ X9 t. ]' t/ t; r4 ]
- return payload;# ]* |! r. I) K3 f: J! l
- }
$ l; U: v2 i9 c n# Q - } else {
1 Z/ X2 w1 X5 }- o! g - Serial.printf("[HTTP] GET... failed, error: %s\n",. K( V* I9 f# h8 I3 b' l9 g
- http.errorToString(httpCode).c_str());
; w+ g* P3 n9 J1 c. v6 W) I: ~ - }
- X. j& B7 W" S" h* m. j0 m - http.end();9 ` i# q. i# w/ J# S
- return "";
! R6 I& M$ B) Y - }. }" e. f/ A+ h# e
- }9 Y, O; h$ P, {; T( J
- void mainAction() {9 A- o, {7 ]; i- [+ p% X2 [
- // 发送请求
/ Z2 b- j$ A0 G, C! [) b1 T - doGet("http://google.cn");
6 [! I, Y2 l4 h( {2 x7 O* w; O - }
' e( M8 r7 q3 W
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